# ICHEP2012

4-11 July 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics
Home > Contribution List
Displaying 596 contributions out of 596
Presented by MCEC ADMIN on 5 Jul 2012 at 17:30
on 5 Jul 2012 at 17:30
on 5 Jul 2012 at 17:45
on 6 Jul 2012 at 17:30
on 6 Jul 2012 at 17:45
on 5 Jul 2012 at 17:30
on 5 Jul 2012 at 17:45
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
The top-quark is the heaviest known fundamental particle with unique properties within the Standard Model. Its large couplings to the Higgs boson, and being the only quark that decays before hadronisation make it sensitive to new physics beyond the SM. A potential extension for the SM would be the adjonction a 4th family of heavy chiral fermions that could provide new sources of CP violation to e ... More
Presented by Dr. Lorenzo FELIGIONI on 6 Jul 2012 at 14:15
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 2 - Beyond the Standard Model - SUSY
Motivated by the recent hints from ATLAS and CMS we consider a minimal supersymmetric model which, due to its approximate Peccei-Quinn symmetry, naturally accommodates a 125 GeV Higgs boson. This model can also explain the potentially anomalous branching ratios of such a Higgs. We examine whether other experimental evidence supports this scenario.
Presented by Dr. Sudhir Kumar GUPTA on 6 Jul 2012 at 10:15
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
We examine the possibility that the SU(2) gauge group of the standard model appears as the dual "magnetic" gauge group of a supersymmetric gauge theory, thus the W and Z (and through mixing, the photon) are composite (or partially composite) gauge bosons.
Presented by Prof. Yuri SHIRMAN on 6 Jul 2012 at 12:30
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 4 - Top Quark Physics
We propose a phenomenological model with a flavour changing electrically-neutral but not self-conjugated Z' to simultaneously explain the large Tevatron ttbar forward-backward asymmetry and the compatible with zero LHC charge asymmetry. We find that the model produces a natural cancellation in pp collisions which is suppressed in Tevatron's ppbar collisions, leading to a large forward-backward as ... More
Presented by Ms. Estefania COLUCCIO LESKOW on 6 Jul 2012 at 14:45
Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
The measurements of the total B->Xs gamma decay rate and the determination of the CKM matrix element |Vub| play important roles in looking for new physics in the flavor sector of the Standard Model, complementary to the ongoing direct searches at the LHC. Their measurements from present and future B-factory data require the precise knowledge of the nonperturbative parts of the parton distribution ... More
Presented by Mr. Florian BERNLOCHNER on 6 Jul 2012 at 14:15
Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11
Track: Track 12. Formal Theory Developments
Present a theory of gravity with an extra-dimension and metric-dependent torsion. A set of constraints imposed on the geometry confine torsion components to the extra-dimension and determine all the connection coefficients in terms of the metric. At the kinematic level, the theory maps on to 4D General Relativity. keeping the extra-dimension hidden. But the dynamical field equations that follow f ... More
Presented by Prof. Kameshwar WALI on 7 Jul 2012 at 13:45
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 14. Future Accelerators
MuSIC is a project to provide the world's highest-intensity muon beam with continuous time structure at Research Center of Nuclear Physics (RCNP) of Osaka University, Japan. A pion capture system using a superconducting solenoid magnet and a part of superconducting muon transport solenoid channel have been build in 2010. The highest muon production efficiency was demonstrated by the beam test ca ... More
Presented by Ms. Yuko HINO on 7 Jul 2012 at 12:30
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
Some long-standing problems in the experimental data for semileptonic b -> c l nu decay rates have resisted attempts to resolve them, despite substantial efforts. We show that the presence of a relatively large decay rate into radially-excited D-mesons may alleviate several of these tensions simultaneously. In particular, their presence could help explaining the discrepancy between model calculati ... More
Presented by Mr. Florian BERNLOCHNER on 4 Jul 2012 at 09:00
Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions
Track: Track 6. QCD, Jets, Parton Distributions
Similarities and differences between the MC@NLO and the POWHEG methods for matching NLO calculations to parton showers are discussed. Particular emphasis is put on their respective formal accuracies. Implementations of both methods in the SHERPA event generator framework are employed to assess their impact on representative observables. Some freedoms in both formulations will be exploited to quant ... More
Presented by Dr. Marek SCHOENHERR on 5 Jul 2012 at 17:00
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
A search for first generation leptoquarks was performed in polarized electron-proton collider data recorded with the ZEUS detector at HERA in the years 2003-2007. They were analyzed for final states with an electron and jets or with missing transverse momentum and jets and a search for resonance structures or other deviations from the Standard Model predictions in the spectra of the invariant ... More
Presented by Dr. Katarzyna WICHMANN on 6 Jul 2012 at 09:35
Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Precise measurements of W and Z production, including the polarisations of W bosons and of tau leptons produced in W decays are presented. They provide tests of lepton universality and constrain electroweak parameters.
Presented by Dr. Joshua MOSS on 6 Jul 2012 at 10:00
Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13
Track: Track 13. Detectors and Computing for HEP
The Semi-Conductor Tracker (SCT) and the Pixel Detector are the key precision tracking devices in the Inner Detector of the ATLAS experiment at CERN LHC. The SCT is a silicon strip detector and is constructed of 4088 silicon detector modules for a total of 6.3 million strips. Each module is designed, constructed and tested to operate as a stand-alone unit, mechanically, electrically, optically a ... More
Presented by Dr. Kendall REEVES on 5 Jul 2012 at 09:00
Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13
Track: Track 13. Detectors and Computing for HEP
After successful LHC operation at 7 TeV in 2011, the LHC is scheduled to deliver even more data in 2012. Meanwhile, plans are actively advancing for a series of upgrades, culminating roughly 10 years from now in the high luminosity LHC (HL-LHC) project, delivering of order five times the LHC nominal instantaneous luminosity along with luminosity levelling. The final goal is to extend the data set ... More
Presented by Dr. Markus ELSING on 6 Jul 2012 at 16:20
Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions
Track: Track 6. QCD, Jets, Parton Distributions
Comprehensive jet cross section measurements are presented, spanning the dijet mass range from 70 GeV to 5 TeV. In addition, event shapes constructed from jets are measured, as well as measurements of jets containing charm and beauty hadrons. These measurements constitute precision tests of QCD in a new energy regime, and show sensitivity to the parton densities in the proton and to the value of ... More
Presented by Mr. Bertrand CHAPLEAU on 5 Jul 2012 at 14:30
Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Differential and total visible cross sections for W+photon and Z+photon production are measured and compared to the predictions of the standard model. Limits on anomalous triple-gauge couples are derived, and the data are used to search for physics beyond the standard model.
Presented by Prof. Zhengguo ZHAO on 6 Jul 2012 at 10:15
Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
ATLAS measurements of diboson production processes involving ZZ, WW and WZ final states are presented. Differential and total visible cross sections are measured for channels involving leptons and neutrinos, and differential distributions are presented. In the ZZ->2l2nu and WW->lnulnu channels, jet vetos are applied. Total cross sections are derived, and limits are set on anomalous triple-gauge co ... More
Presented by Dr. Chris HAYS on 6 Jul 2012 at 12:00
Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions
Track: Track 6. QCD, Jets, Parton Distributions
The production of jets and/or heavy flavours in association with a W or Z boson represents an important process with which to study QCD in a multi-scale environment. Unprecedented precision is achieved in measurements of differential cross sections and multiplicities, and comparisons are made to state-of-the-art high NLO QCD calculations of high-multiplicity final states. Jets containing b- or c-h ... More
Presented by Prof. Pierre-Hugues BEAUCHEMIN on 5 Jul 2012 at 11:45
Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6
Track: Track 6. QCD, Jets, Parton Distributions
Soft and semi-hard QCD studies made with ATLAS are presented. These include measurement of the inelastic and diffractive cross sections, mean forward energy flow, forward-backward and azimuthal correlations, azimuthal ordering of hadron production, event shapes, and identified strange particle production. Distributions sensitive to the underlying event are measured in a variety of hard processes. ... More
Presented by Mr. Tim MARTIN on 6 Jul 2012 at 12:00
Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13
Track: Track 13. Detectors and Computing for HEP
The CMS all-silicon tracker consists of 16588 modules: aligning them with the desired precision of a few micrometers is only feasible using track based alignment procedures. Ultimate precision is now achieved by the determination of sensor curvatures in addition to the local translation and rotation of modules in space. This challenges the alignment algorithms to determine about 200k parameters si ... More
Presented by Dr. Roberto CASTELLO on 6 Jul 2012 at 11:30
Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model
Track: Track 12. Formal Theory Developments
We use the amplitude-based resummation of Feynmans formulation of Einsteins theory to arrive at a UV finite approach to quantum gravity. We show that we recover the UV fixed point recently claimed by the exact field-space renormalization group approach. We use our approach in the context of the attendant Planck scale cosmology formulation of Bonanno and Reuter to estimate the value of the cosmol ... More
Presented by Prof. Bennie WARD on 5 Jul 2012 at 14:40
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
An explicit SU(12) unification model with three light chiral families is presented which avoids any external flavor symmetries. The hierarchy of quark and lepton masses and mixings is explained by higher dimensional Yukawa interactions involving Higgs bosons containing SU(5) singlet fields with VEVs appearing at a scale 50 times smaller than the $3 \times 10^{16}$ GeV SU(12) unification scale. T ... More
Presented by Prof. Carl ALBRIGHT on 6 Jul 2012 at 16:45
Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6
Track: Track 8. Neutrinos
The Argon Neutrino Test, ArgoNeuT, is a small scale Liquid Argon Time Projection Chamber(LArTPC). ArgoNeuT, an R&D project paving the way for construction of larger detectors, was located 350 feet underground and ran upstream of the MINOS detector in the NuMI beam at Fermi National Accelerator Laboratory from September 2009 to February 2010. ArgoNeuT provides bubble-chamber-like quality images fo ... More
Presented by Ms. Kinga PARTYKA on 6 Jul 2012 at 17:30
Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9
Track: Track 9. Heavy Ion Collisions
Anisotropic flow is sensitive to the properties of the deconfined state of matter produced during the course of a heavy-ion collision. We report on the inclusive photons anisotropic flow at forward rapidity, 2.3 < eta < 3.9, measured for Pb-Pb collisions at 2.76 TeV with ALICE at the LHC. Photons are reconstructed with ALICE Photon Multiplicity Detector (PMD), and the collision symmetry plane is e ... More
Presented by Ms. Anitha NYATHA on 6 Jul 2012 at 12:00
Type: Poster Sessions Session: Poster Session
Track: Track 13. Detectors and Computing for HEP
A solid scintillator detector DANSS (Detector of Anti-Neutrino based on Solid Scintillator) designed for remote on-line diagnostics of nuclear reactor parameters and a search for short range neutrino oscillation is under construction now. It will be installed at the Kalinin Nuclear Power Plant next year. DANSS is a 1 m3 plastic scintillator detector divided into 2500 cells and surrounded with comb ... More
Presented by Prof. Mikhail DANILOV on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 13. Detectors and Computing for HEP
In this presentation we will discuss progress on providing access to CMS experiment data through the use of wide area transfer protocols directly from remote storage to a running application. This program of work has involved the deployment of infrastructure on facilities in both the US and in Europe, the optimization of the application to make more efficient use of a higher latency connection, an ... More
Presented by Prof. Sudhir MALIK on 7 Jul 2012 at 15:00
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 4 - Top Quark Physics
The most intriguing property of top-quark physics observed so far is the forward-backward asymmetry in the production of top-quark pairs in proton anti-proton collisions at the Fermilab Tevatron. An unexpectedly sizable effect has observed in both the semi-leptonic and the all-leptonic decay channels of top-quark pairs, exceeding significantly the standard model predictions, and has motivated inte ... More
Presented by Dr. Chris HAYS on 5 Jul 2012 at 09:30
Type: Poster Sessions Session: Poster Session
Track: Track 13. Detectors and Computing for HEP
In particle physics, after specifying the symmetries of a theory, the field content and their transformations under the symmetries, the resulting procedure for obtaining physical results is well-defined and algorithmic. This talk presents a program that permits the user to simply specify the relevant content and automatically generate a Lagrangian.
Presented by Dr. Nicholas SETZER on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10
Track: Track 5 - B-Physics
The LHCb experiment is a forward arm spectrometer designed to make high precision measurements of b hadron decays at the LHC. During 2011 a total luminosity of 1.0 fb-1 of data was collected at sqrt(s)=7 TeV. LHCb's efficient dimuon trigger allows to perform studies of B mesons decaying to charmonia with high precision. We will present new measurements of the relative branching ratios of exclusiv ... More
Presented by Mr. Christian Peter LINN on 7 Jul 2012 at 12:45
Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
SuperB will collect 75ab^-1 of data at the Y(4S). Using this data, the experiment will be able to study rare B decays such as B to l nu and K(*)nu nubar as well as perform precision measurements of the angles of the unitarity triangle and improving measurements of |Vub| and |Vcb|. A few ab^-1 run at the Y(5S) will allow this experiment to search for rare decays of the B_s meson as well as meas ... More
Presented by Claudia CECCHI on 6 Jul 2012 at 17:30
Type: Poster Sessions Session: Poster Session
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
We present our calculation of B to Kstar and Bs to phi form factors (and those for B to rho and Bs to Kstar). These are obtained from lattice QCD calculations which include the effects of up, down, and strange sea quarks and use the nonrelativistic formulation for the bottom quark. Results are obtained directly in the low recoil (large q-squared) kinematic range, complementing results obtained u ... More
Presented by Dr. Matthew WINGATE on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10
Track: Track 10. Lattice QCD
Present and future experiments will reach unprecedented precision in the measurements of physical quantities related to B-physics. Therefore an accurate theoretical determination of intrinsically non-perturbative parameters, relevant for studies of B-physics, is required in many phenomenological analyses to further constrain the Standard Model and to explore New Physics scenarios. The goal of latt ... More
Presented by Dr. Andrea SHINDLER on 7 Jul 2012 at 10:00
Type: Plenary Sessions Session: BSM / Spectroscopy / IUPAP-C11 Report
Track: Plenary Sessions
Presented by Dr. Steven WORM on 10 Jul 2012 at 15:40
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
We demonstrate that by adding three exotic fermion 5-plets and one scalar 6-plet to the standard model, a consistent solution to the problems of baryon asymmetry, dark matter and neutrino mass can be obtained. This is possible because renormalizability and standard model gauge invariance allow the lightest exotic particle in this model to be a dark matter candidate if the new 6-plet scalar does no ... More
Presented by Mr. Sandy LAW on 7 Jul 2012 at 14:45
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 13. Detectors and Computing for HEP
The next generation of B factories (so called super B factories) are designed to accummulate a 50 times larger data sample, corresponding to an integrated luminosity of 50 ab^-1. To achieve the necessary increase of event rates by a factor of 40, a substantial upgrade is required both of the accelerator complex as well as of the detector. To maintain the excellent performance of the detector, th ... More
Presented by Prof. Martin SEVIOR on 7 Jul 2012 at 16:00
Type: Plenary Sessions Session: BSM / Spectroscopy / IUPAP-C11 Report
Track: Plenary Sessions
Presented by Dr. Bogdan DOBRESCU on 10 Jul 2012 at 16:10
Type: Poster Sessions Session: Poster Session
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
We propose a class of observables constructed from lepton energy distribution, which are independent of the velocity of the parent particle if it is scalar or unpolarized. These observables may be used to measure properties of various particles in the LHC experiments. We demonstrate their usage in a determination of the Higgs boson mass.
Presented by Dr. Yasuhiro SHIMIZU on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
Despite the hint for a 125 GeV Higgs boson, we consider the other option of MH > 600 GeV, noting that the existence of the Higgs boson itself is not yet an established fact. What we do know is that the Goldstone bosons of electroweak symmetry breaking exist as longitudinal components of the weak bosons. The Goldstone boson coupling to a new heavy chiral quark doublet Q (assuming it exist), the G-Q ... More
Presented by Prof. George Wei-Shu HOU on 6 Jul 2012 at 14:45
Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10
Track: Track 5 - B-Physics
We study the decays $B^0_s\rightarrow J/\psi\phi$ and $B^0_s\rightarrow J/\psi K^+K^-$ using a 121.4 fb$^{-1}$ data sample collected at the $\Upsilon(5S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. The decay $B^0_s\rightarrow J/\psi\phi$ is an important mode for measuring the CP violating phase $\beta_s$ in the $B_s\bar{B}_s$ mixing, which is of particular i ... More
Presented by Ms. Felicitas THORNE on 7 Jul 2012 at 12:30
Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10
Track: Track 5 - B-Physics
Using the complete 10/fb dataset, the CDF experiment has studied CP violation in several hadronic decay modes of bottom hadrons. In the decays of Bd, Bs, and Lambda_b hadrons into charmless two-body final states, we present results including improved measurements of the branching ratios and time-integrated CP-violating asymmetries of known decays and tightened constraints on these quantities for ... More
Presented by Mr. Mirco DORIGO on 7 Jul 2012 at 15:15
Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
Results of a CDF search for B->mumu decays and the angular analysis of B --> X_s mu+mu- decay sare presented using the complete 10/fb dataset collected by the CDF experiment. The B-> mu+mu-analysis is unchanged with respect to the last iteration and 30% more data allow to reach 95% expected upper limits for the branching ratio of4.2x10^-9 in the Bd decay and 1.3x10^-8 in the Bs decay. The results ... More
Presented by Dr. Hideki MIYAKE on 6 Jul 2012 at 15:30
Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
We present the results of CDF searches for diboson production in final states with jets identified as originating from heavy flavor quark decays. In particular, searches for WZ/ZZ production where the first W or Z boson decays leptonically and the second Z decays into a pair of bottom or charm quarks mimic primary Tevatron searches for a low mass Higgs with subsequent decay into a pair of bottom ... More
Presented by Dr. Marco TROVATO on 6 Jul 2012 at 14:15
Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11
Track: Track 11. Particle Astrophysics and Cosmology
QUIET is a ground-based CMB Polarization experiment, which aims to detect the degree-scale B-modes (curl components) induced by primordial gravitational waves. The existence of the primordial gravitational wave is a generic prediction of inflationary universe, therefore the detection of the B-modes is a "smoking-gun" signature of the inflation. The B-mode signal is expected to be orders of magnitu ... More
Presented by Dr. Masaya HASEGAWA on 7 Jul 2012 at 16:45
Session: IUPAP Prize Winners / CKM
Track: Plenary Sessions
Presented by Mikihiko NAKAO
Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219
Track: Track 8. Neutrinos
Exciting prospects for the discovery of CP violation in the neutrino sector have recently been made more likely by the measurement of the neutrino mixing angle theta_13. CP violation is a necessary condition for leptogenesis to be at the origin of the matter-antimatter asymmetry of the universe. A number of future options for establishing CP violation in neutrinos are possible, but the Neutrino F ... More
Presented by Prof. Kenneth LONG on 5 Jul 2012 at 16:30
Presented by Prof. Mikihiko NAKAO on 10 Jul 2012 at 14:50
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
CP violation in charm decays is studied in light of recent experimental findings of LHCb and CDF.Flavor symmetry violations as manifestly displayed in the data are incorporated without theoretical assumptions. Repercussions for CP asymmetries for some of the B (Bs) -decays are incorporated. Range of expectations from the Standard Model are quantified. Further directions to pursue to isolate poten ... More
Presented by Dr. Amarjit SONI on 5 Jul 2012 at 17:30
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 4 - Top Quark Physics
The LHC will produce large numbers of top anti-top quark pairs providing an excellent opportunity to study in detail the properties of the top-quark. We discuss the use of T-odd correlations to extract information on the CP violating couplings of the top-quark at the LHC. We illustrate our discussion with two examples: CP violating anomalous top quark couplings; and CP violation in extended Higgs ... More
Presented by Prof. German VALENCIA on 6 Jul 2012 at 12:00
Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model
Track: Track 12. Formal Theory Developments
The Antonsen – Bormann idea was originally proposed by these authors for the computation of the heat kernel in curved space; it was also used by the author recently with the same objective but for the Lagrangian density for a real massive scalar field in 2 + 1 dimensional stationary curved space,the metric being defined by the rotating solution of Deser et al. Ann.Phys.120,220(1984) and Clement, ... More
Presented by Prof. Gopinath KAMATH on 5 Jul 2012 at 12:00
In 7 TeV proton - proton collisions at the LHC, pairs of top and anti-top quarks are expected to be mostly produced through gluon fusion, in contrast to production at the Tevatron, where quark annihilation dominates. The ATLAS experiment has now recorded a large number of top quark pairs, allowing this domain to be explored in detail. We present measurements of top-quark charge asymmetry which c ... More
Presented by Dr. Mario GIORDANI on 5 Jul 2012 at 09:00
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
The flavor-changing neutral-current decays decays D0 --> e+e-, D0 --> mu+mu-, and D0-->gamma gamma are highly suppressed in the standard model, well below observable levels. The decay D0 --> e+mu- is further lepton-flavor violating, and thus can occur only through very slow neutrino mixing. Thus, these decays constitute sensitive probes for possible new-physics contributions. We report new limits ... More
Presented by Dr. Romulus GODANG on 5 Jul 2012 at 14:30
Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
We present new branching fraction measurements of rare radiative $D$ decays and compare these measurements with the theoretical predictions. The results are obtained from a large data sample collected near the $\Upsilon(4S)$ and $\Upsilon(5S)$ resonances with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider.
Presented by Prof. Min-Zu WANG on 7 Jul 2012 at 10:30
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
 We present a measurement of the D0-antiD0 mixing and CP-violation parameters y_CP and Delta y using the full BABAR dataset. We reconstruct samples of D*-tagged and untagged D0 decays to the final states K+K-, K+/-pi-/+ and pi+pi-. From a simultaneous fit to the different channels, we extract the effective lifetimes of the D0 decaying to the CP-even final states and the flavor-specific final s ... More
Presented by Ms. Giulia CASAROSA on 5 Jul 2012 at 16:15
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
We present an updated measurement of the mixing parameter $y_{CP}$ in the decays $D^0 \to K^+ K^-$ and $D^0 \to \pi^+ \pi^-$. The results are obtained from the full data set of 1 ab${}^{-1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We report a measurement of $D^0 - \bar D^0$ mixing in $D^0 \to K^0_S \pi^+ \pi^-$ decays using a time-dependent Dalitz plo ... More
Presented by Mr. Tao PENG on 5 Jul 2012 at 17:15
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
Flavour-changing neutral current decays such as c -> u l+ l– are highly suppressed in the Standard Model (SM), but may be enhanced by New Physics. For D0 -> μ+ μ–, the SM decay rate is dominated by long distance contributions but is still a few order of magnitudes below the current experimental limit. In decays such as D+ -> π+ μ+ μ–, measuring the differential branching ratio as a func ... More
Presented by Dr. Walter BONIVENTO on 5 Jul 2012 at 14:00
Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6
Track: Track 6. QCD, Jets, Parton Distributions
Charm production has been measured with the ZEUS detector in deep inelastic ep scattering at HERA. The measurement is based on the full reconstruction of the decay chain D*->D0pis, D0->Kpi and exploits the full HERA II statistics. Differential cross sections have been measured. The kinematic range is 1.5 GeV < pT(D*) < 10GeV, |eta(D*)| < 1.5, 5 < Q2 < 1000GeV2 and 0.02 < y < 0.7. The observed cr ... More
Presented by Dr. Achim GEISER on 6 Jul 2012 at 17:15
Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
We report a measurement of CP violation in the decay B0 --> pi+ pi- pi0 using the full Upsilon(4S) sample of the BABAR experiment. We perform a full time-dependent Dalitz-plot analysis sensitivity to the interference between B0 and B0bar decays, as well as between the intermediate rho --> pi pi resonances. This allows us to extract the CKM unitarity-triangle angle alpha with reduced ambiguity and ... More
Presented by Dr. Eli BEN-HAIM, Eli BEN HAIM, Eli BEN HAIM on 7 Jul 2012 at 17:15
Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10
Track: Track 5 - B-Physics
We study two-body charmless hadronic $B$ decays involving a tensor meson in the final state within the framework of QCD factorization (QCDF). Unlike the light vector meson, because of the G-parity of the tensor meson, both the chiral-even and chiral-odd two-parton light-cone distribution amplitudes of the tensor meson are antisymmetric under the interchange of momentum fractions of the quark and ... More
Presented by Prof. Kwei-Chou YANG on 7 Jul 2012 at 11:00
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
The q^2 dependence of exclusive semileptonic form factors may be used to test standard-model theoretical calculations, and the total branching fractions provide a measure of the CKM matrix element V_ub. We report on measurements of the differential branching fractions of the exclusive semileptonic decays B-->pi l nubar, B-->eta l nubar, B-->eta’ l nubar, and B-->omega l nubar as a function of q^ ... More
Presented by Prof. Abner SOFFER on 5 Jul 2012 at 10:15
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
We present the study of narrow charmonium(-like) resonances by $\chi_{c1,c2} \gamma$ final states in $B \to \chi_{c1,c2} \gamma K$ decays at Belle. The results are based on the full $\Upsilon(4S)$ data sample corresponding to $772 \times 10^6\ B\bar B$ pairs recorded by the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We present the study of $B^{\pm} \to J/\psi\, \eta\, K^{\ ... More Presented by Dr. Bruce YABSLEY on 5 Jul 2012 at 15:15 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy In the past few years, several new charmonium-like states have been observed above the open-charm threshold, with properties that disfavor their interpretation as conventional charmonium states. It is not clear whether all these states are unique. Specifically, it has been suggested that the X(3915), observed in gamma gamma ->J/psi omega, and the Y(3940), observed in B-->J/psi omega K, may be one ... More Presented by Dr. Valentina SANTORO on 5 Jul 2012 at 15:00 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments In the Lorentz invariant formalism of compact space-time dimensions the assumption of periodic boundary conditions represents a consistent semi-classical quantization condition for relativistic fields. In [arXiv:1110.0315, Ann. Phys. (2012)] we have shown, for instance, that the ordinary Feynman path integral is obtained as interference between the classical paths with different winding numbers a ... More Presented by Dr. Donatello DOLCE on 5 Jul 2012 at 11:45 Type: Plenary Sessions Session: Future / Close Track: Plenary Sessions Presented by Prof. Rolf HEUER on 11 Jul 2012 at 16:20 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions We report on the CMS measurements of charged hadron anisotropic azimuthal distributions from PbPb collisions at sqrt{s_{NN}} = 2.76 TeV. The results are presented as a function of transverse momentum, centrality and pseudorapidity and cover a broad kinematic range. Long range in pseudorapidity di-hadron azimuthal correlations are also studied and discussed in terms of the possible influence of the ... More Presented by Dr. Sandra PADULA on 6 Jul 2012 at 11:45 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics We report the combination of recent measurements of the helicity of the W boson from top quark decay by the CDF and D0 collaborations, based on data samples corresponding to integrated luminosities of 2.7 – 5.4 fb−1 of ppbar collisions collected during Run II of the Fermilab Tevatron Collider. Combining measurements that simultaneously determine the fractions of W bosons with longitudinal (f0) ... More Presented by Prof. Erich Ward VARNES on 5 Jul 2012 at 16:30 Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches A combination of the results of searches for the standard model Higgs boson is presented. The searches use up to 10 fb-1 of Tevatron collider Run II data. We present upper bounds at the 95% CL on the production rate of a SM-like Higgs boson in the mass range 90-200 GeV. We further present measurements of the cross section times branching ratio for Higgs bosons decaying to bbbar, tau pairs, W pa ... More Presented by Dr. Azeddine KASMI on 7 Jul 2012 at 16:00 Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches We present the combination of the searches for the Standard Model Higgs boson at a center-of-mass energy of sqrt(s)=1.96 TeV, using the full Run 2 dataset collected with the D0 detector at the Fermilab Tevatron collider. The major contributing processes include associated production (WH-->lvbb, ZH-->vvbb, ZH-->llbb, and WH-->WWW(*)) and gluon fusion (gg--> H-->WW(*)). The significant improvements ... More Presented by Dr. Kenneth Richard HERNER on 7 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 13. Detectors and Computing for HEP In this presentation we will discuss the process and some examples of the development of common solutions that face the LHC experiments. The LHC experiments have relied on common grid components since the design of the computing models. Recently there have been efforts to develop and support higher-level services that provide solutions to problems common to several experiments. We will discuss the ... More Presented by Dr. Ian FISK on 7 Jul 2012 at 14:45 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 13. Detectors and Computing for HEP Developing a computing model for the next generation of Super Flavor Factories, like SuperB and SuperKEKB, present significant challenges. With a nominal luminosity above 10^36 cm^-2 s^-1, we estimate that, after few years of operation, the size of the data sample will be of the order of 500 PB and the amount of CPU required to process it will be close to 5000 KHep-Spec06. The new many and multi ... More Presented by Dr. Domenico DEL PRETE on 7 Jul 2012 at 14:00 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY We perform global fits to the parameters of the Constrained Minimal Supersymmetric Standard Model (CMSSM) and to a variant with non-universal Higgs masses (NUHM1). In addition to constraints from low-energy precision observables and the cosmological dark matter density, we take into account the LHC exclusions from searches in jets plus missing transverse energy signatures with about 5\,fb$^{-1}o ... More Presented by Dr. Xavier PRUDENT on 5 Jul 2012 at 14:15 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy There has been a lot of recent interest in experimental hints of CP violation in B_{d,s}^0 mixing. The D0 measurement of the semileptonic CP asymmetry would - with higher significance - be a clear signal of beyond the standard model physics. In this talk I present a relation [arXiv:1203.3545] for the mixing parameters, which allows clearer interpretation of the data in models in which new physics ... More Presented by Dr. Sascha TURCZYK on 7 Jul 2012 at 17:45 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY The direct searches for Superymmetry can be complemented by direct searches for dark matter, if one assumes the Lightest Supersymmetric Particle (LSP) provides the dark matter of the universe. It is shown that within the CMSSM the direct searches are more sensitive than the direct LHC searches for large values of the squark masses, even if one considers the uncertainties from the local relic densi ... More Presented by Prof. Dmitry KAZAKOV on 5 Jul 2012 at 14:45 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 11. Particle Astrophysics and Cosmology The absolute neutrino mass scale is currently unknown, but can be constrained from cosmology. We use the large-scale structure information from the WiggleZ Dark Energy Survey to constrain the sum of neutrino masses. The WiggleZ high redshift star-forming blue galaxy sample is less sensitive to systematic effects from non-linear structure formation, pairwise galaxy velocities, redshift-space distor ... More Presented by Dr. Signe RIEMER-SORENSEN on 6 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology Cosmic inflation predicts that primordial gravitational waves were created during the inflationary era. Measurements of polarization of the Cosmic Microwave Background (CMB) radiation are known as the best probe to detect the primordial gravitational waves. POLARBEAR is a telescope designed to detect the CMB B-mode with very sensitive polarimeters based on superconductive transition edge sensor ... More Presented by Dr. Masaya HASEGAWA on 7 Jul 2012 at 17:00 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics The cross section for top-quark production, either in pairs through chromo-dynamical mechanisms or in single top-quarks through electro-weak based mechanisms, is a topic of great interest for testing theoretical predictions and constraining standard model parameters, as well as for searching for new physics in the top-quark sector. We present recent measurements of the top-quark pair production cr ... More Presented by Mr. Matteo CORBO on 5 Jul 2012 at 10:00 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy With the world largest data sample taken at psi(3770) peak with the BESIII detector at the BEPCII e+e- collider, the D+ purely leptonic and D0 semi-leptonic decays are studied. We present the preliminary branching fraction measurements of D+ -> mu nu, D0 -> K- e+ nu and D0 -> pi- e+ nu. We extract pseudoscalar decay constant of f_D using D+ purely leptonic decays and the hadronic form factors usin ... More Presented by Prof. Ronald POLING on 4 Jul 2012 at 09:15 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions We present a new Monte Carlo event generator based on the Mueller dipole model. The model is equivalent to leading logarithmic BFKL evolution and in our implementation we include several non-leading effects, such as energy-momentum conservation and a so-called swing mechanism to model saturation effects. In the end we can model all kinds of correlations and fluctuations between partons in the init ... More Presented by Prof. Leif Ingvar LöNNBLAD on 6 Jul 2012 at 11:15 Type: Plenary Sessions Session: Cosmology / Theory Developments Track: Plenary Sessions Presented by Dr. Lauren HSU on 11 Jul 2012 at 10:50 Type: Poster Sessions Session: Poster Session Track: Track 11. Particle Astrophysics and Cosmology Dark Energy is the dominant component of the Energy Density of the Universe. It is imperative to understand the gravitational dynamics of Dark Energy and its implications. The most promising candidate for dark energy is the energy density of fields in curved space-time. We describe the formalism to study the time evolution and gravitational dynamics of dark energy field configurations given any ge ... More Presented by Anupam SINGH on 7 Jul 2012 at 18:00 Type: Plenary Sessions Session: Cosmology / Theory Developments Track: Plenary Sessions Presented by Prof. Mark TRODDEN on 11 Jul 2012 at 11:50 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology Dark matter (DM) search is one of the major goals in the modern physics. An eligible dark matter candidate may reproduce the correct relic inferred from astrophysical observations, e.g. WMAP experiment. It may also be compatible with the null results on dark matter direct detection performed in the underground laboratories by measuring events of nuclei recoil as scattered by the halo dark matter, ... More Presented by Dr. Ho-Chin TSAI on 7 Jul 2012 at 11:45 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology Can we learn about New Physics with astronomical and astro-particle data? Since its launch in the 2008, the Large Area Telescope, onboard of the Fermi Gamma-ray Space Telescope, has detected the largest amount of gamma rays in the 20MeV 300GeV energy range and electrons + positrons in the 7 GeV- 1 TeV range. This impressive statistics allows one to perform a very sensitive indirect experimental ... More Presented by Aldo MORSELLI on 7 Jul 2012 at 12:45 Type: Plenary Sessions Session: Cosmology / Theory Developments Track: Plenary Sessions Presented by Prof. Neal WEINER on 11 Jul 2012 at 11:20 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology Data will be reported from the operation of a 4.0 kg CF3I bubble chamber in the 6800 foot deep SNOLAB underground laboratory. The effectiveness of ultrasound analysis in discriminating alpha decay background events from single nuclear recoils has been confirmed. The total exposure was 553 kg-days distributed over three different bubble nucleation thresholds. This observation provides world best di ... More Presented by Dr. Russell NEILSON on 7 Jul 2012 at 10:00 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 11. Particle Astrophysics and Cosmology ANTARES is the largest neutrino telescope Northern hemisphere. It consists of a three-dimensional array of 885 photomultipliers to collect the Cherenkov light induced by relativistic muons produced in CC interactions of high energy neutrinos. One of the main scientific goals of the experiment is the search for dark matter. We present here the analysis of the recently unblinded data taken during 20 ... More Presented by Dr. Juan de Dios ZORNOZA GOMEZ on 6 Jul 2012 at 17:00 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 13. Detectors and Computing for HEP The CMS detector, currently taking data at the LHC in Geneva, is a very complex apparatus composed of more than 70 million acquisition channels. Fast and efficient methods for the calibration and the alignment of the detector are a key asset to exploit its full physics potential. Moreover, a reliable infrastructure for the monitoring of the data quality and for their validation are instrumental to ... More Presented by Dr. Jean-Roch VLIMANT on 7 Jul 2012 at 14:15 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy Using samples of 102 million\Upsilon(1S)$and 158 million$\Upsilon(2S)$events collected with the Belle detector at the KEKB asymmetric-energy$e^+ e^-$collider, we study hadronic exclusive decays of these two bottomonium resonances to the three-body final states$\phi KK$,$\omega \pi\pi$and$K^{\ast 0}(892) K^- \pi^+ + {\rm c.c.}$, as well as two-body processes including the Vector--Tensor ... More Presented by Dr. Matthew BARRETT on 5 Jul 2012 at 13:45 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 14. Future Accelerators A Conceptual Design Report has been completed for a new electron-proton and electron-ion collider, which achieves a cms energy of 1.3 TeV in ep using the high energy beams of the LHC. Designed for synchronous ep and pp operation, the LHeC will be a high luminosity collider with a wide ranging physics program on high precision deep inelastic scattering and new physics. The electron beam is designe ... More Presented by Prof. Max KLEIN on 7 Jul 2012 at 11:30 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology We investigate electroweak bremsstrahlung as a potential search channel for dark matter at the LHC. For illustrative purposes we consider a typical quarkphilic model with a Majorana dark matter candidate. We focus on the emission of a$Z$boson from either the initial state particles or the internal propagator during annihilation of quarks into dark matter. Among the signatures of such processes w ... More Presented by Mr. Galea AHMAD on 7 Jul 2012 at 12:00 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy A large sample (20 k) of Bs -> J/psi Phi decays were collected by ATLAS in year 2011. The transition to states with defined CP eigenvalues have been studied through angular correlations in decays of J/psi and Phi. Measurement of the lifetimes of the different eigenstates and the CP-violating mixing phase phi_s have been recently obtained and are presented. Presented by Dr. Sandro PALESTINI on 7 Jul 2012 at 16:00 Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches With the luminosity expected from the 2012 LHC run, the CMS and ATLAS experiments may reach the discovery sensitivity for the Higgs search in the low-mass region. If a new resonance is observed on LHC, it will be crucial to determine the spin and quantum numbers of the new particle and its couplings to Standard Model fields as accurately as possible. We study the production of a single resonance ... More Presented by Dr. Sara BOLOGNESI on 7 Jul 2012 at 16:30 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP For the planned high-luminosity upgrades of the Large Hadron Collider (LHC)increasing background rates of neutrons and gamma rays are expected exceed the rate capability of the current ATLAS muon tracking detectors. Drift-tube chambers with a tube diameter of 15 mm have (sMDT chambers) been developed for upgrades of the ATLAS muon spectrometer. A full sMDT prototype chamber has been constructed an ... More Presented by Dr. Hubert KROHA on 6 Jul 2012 at 12:30 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 14. Future Accelerators Future lepton colliders such as the International Linear Collider (ILC), and the Compact Linear Collider (CLIC) require nanometer-sized beams at the interaction point (IP). We report on the design, protoyping and testing of beam-based feedback systems for steering the beams into collision at the IP so as to maximise the luminosity performance of the colliders. Both all-analogue and digital fee ... More Presented by Prof. Philip BURROWS on 6 Jul 2012 at 09:15 Type: Poster Sessions Session: Poster Session Track: Track 13. Detectors and Computing for HEP A concept of readout of noble gas two-phase emission detectors by means of multipixel avalanche Geiger photodiodes (MGPDs or SiPMs) and a THGEM structure is presented. It is well known that a two-phase emission technique with noble gases is a very sensitive method of detection of very small ionisation signals (down to few or single ionisation electrons). Electroluminescent “amplification” pro ... More Presented by Dr. Ivan ALEXANDROV on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 4 - Top Quark Physics Recent measurements on the top-quark forward-backward asymmetry (A_FB) by the two (CDF & D0) Tevatron experiments show a more than 3 sigma deviation from the Standard Model prediction from the SM expectation of 5.2 ± 0.6%. Later about 3.1sigma enhancement was established on the basis of considering top-pairs only from the large tt_bar invariant mass region. In this talk, we will discuss about th ... More Presented by Dr. Sudhir Kumar GUPTA on 6 Jul 2012 at 11:00 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP Progress in experimental particle physics in the coming decade depends crucially upon the ability to carry out experiments at high energies and high luminosities. These conditions imply that future experiments will take place in very high radiation areas. In order to perform these complex and expensive experiments new radiation hard technologies will have to be developed. Chemical Vapour Depositio ... More Presented by Prof. Marko MIKUZ on 6 Jul 2012 at 10:30 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics We present measurements of various differential cross sections in top pair production in proton-proton collisions at the LHC at a centre-of-mass energy of 7 TeV. The data are collected by the CMS experiment during the year 2011. Cross sections are measured differentially as a function of various variables, including the transverse momentum and rapidity of the (anti)top quark and the top-antitop sy ... More Presented by Dr. Maria ALDAYA MARTIN on 4 Jul 2012 at 09:45 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics After having established the ttbar production mechanism at LHC, interest is now focused on differential spectra of ttbar. Latest measurements performed in 7 TeV proton - proton collisions with the ATLAS detector at the Large Hadron Collider will be presented. Presented by Dr. Taylor CHILDERS on 4 Jul 2012 at 09:30 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions A combination of the inclusive diffractive cross section measurements made by the H1 and ZEUS Collaborations at HERA is presented. The analysis uses diffractive deep inelastic scattering data measured by means of proton spectrometers. Correlations of systematic uncertainties are taken into account by the combination method, resulting in improved precision. The combined data cover the range 2.5 < Q ... More Presented by Dr. David SALEK on 6 Jul 2012 at 11:00 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions The cross section of diffractive deep-inelastic scattering ep → eXp is measured, where the system X contains at least two jets and the leading final state proton is detected in the H1 Forward Proton Spectrometer. The measurement is performed for fractional proton longitudinal momentum loss x_IP < 0.1 and covers the range 0.1 < |t| < 0.7 GeV^2 in squared four-momentum transfer at the proton verte ... More Presented by Dr. Richard POLIFKA on 6 Jul 2012 at 11:15 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions Jet production in PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV is studied with the CMS detector at the LHC. Jets are reconstructed using the energy deposited in the CMS calorimeters. A large dijet imbalance is observed in central PbPb collisions, which reduces in the more peripheral collisions. This observation is consistent with a jet quenching scenario, where the parton ... More Presented by Dr. David KROFCHECK on 6 Jul 2012 at 10:15 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy We measure the time-integrated rate$R_{WS}$of the wrong-sign decay$D^0 \to K^+ \pi^- \pi^+ \pi^-$relative to the Cabibbo-favored right-sign process. The data was recorded with the Belle detector and corresponds to an integrated luminosity of 800 fb${}^{-1}$at the$\Upsilon(4S)$resonance. We also report a measurement of the$CP$asymmetry factor$A_{CP}$by fitting the$D^0$and$\bar D^0$sa ... More Presented by Mr. Byeong Rok KO on 5 Jul 2012 at 17:00 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 11. Particle Astrophysics and Cosmology The Large Underground Xenon (LUX) experiment consists of a two-phase xenon time projection chamber, which is being deployed at a depth of 4850 feet in the Homestake mine in Lead, South Dakota. When LUX begins operation in Fall 2012 it will be the world’s most sensitive dark matter detector, with a fiducial target mass of 100 kg. Results from a surface lab commissioning and calibration run of L ... More Presented by Dr. Karen GIBSON on 6 Jul 2012 at 17:30 Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches We present the results of searches for the standard model Higgs boson at CDF in final states with bottom quarks. Results are derived from the complete Tevatron Run II dataset, with a measured integrated luminosity of 9.5/fb of proton-antiproton data. The searches are performed for assumed Higgs masses between 90 and 150 GeV, for Higgs bosons produced in association with associated W or Z bosons. ... More Presented by Dr. Wei-Ming YAO on 7 Jul 2012 at 14:45 Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3 Track: Track 3 - BSM - Non-SUSY Exotics We investigate the prospects for the discovery of massive hyper-gluons at the CERN Large Hadron Collider with$\sqrt{s} = 14$TeV. A phenomenological Lagrangian is adopted to evaluate the cross section of a pair of colored vector bosons (colorons,$\tilde{\rho}$) decaying into four colored scalar resonances (hyper-pions,$\tilde{\pi}$), which then decay into eight gluons. We include the dominant p ... More Presented by Prof. Chung KAO on 7 Jul 2012 at 10:35 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos The Double Chooz experiment presented in November 2011 a first indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. The observed deficit in the neutrino rate, along with the distortion of the neutrino energy spectrum, is interpreted as a consequence of the oscillation driven by the mixing angle theta_13. In 2012, a second analysis has been performed by t ... More Presented by Dr. Pau NOVELLA GARIJO on 5 Jul 2012 at 11:00 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology In this talk, we introduce a new framework for dark-matter physics which we call "Dynamical Dark Matter". Rather than focus on one or more stable dark-matter particles, we instead consider a multi-component framework in which the dark matter of the universe comprises a vast ensemble of interacting fields with a variety of different masses, mixings, and abundances. Moreover, rather than impose st ... More Presented by Prof. Keith DIENES on 6 Jul 2012 at 09:30 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology In this talk, we provide an explicit realization of the DDM framework in which the constituent fields of the dark-matter ensemble are the mixed KK excitations of an axion propagating in the bulk of large extra spacetime dimensions. Mixing between these KK excitations, induced by a brane mass term, leads to a suppression of the interactions between the light mass eigenstates in the KK tower and the ... More Presented by Dr. Brooks THOMAS on 6 Jul 2012 at 09:45 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 4 - Top Quark Physics A larger than expected forward-backward asymmetry in rapidity is observed in top quark pairs produced in proton-antiproton collisions at the Tevatron. The asymmetry is seen in both the top quark rapidity distribution$A_{FB}^t$and in the distribution of charged leptons$A_{FB}^\ell$from top quark decay. We explore the kinematic and dynamic aspects of the tight relationship of the two observables ... More Presented by Dr. Edmond BERGER Type: Plenary Sessions Session: EW Physics / SUSY Track: Plenary Sessions Presented by Prof. Alex POMAROL on 9 Jul 2012 at 14:20 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches A search for events ep-> ep Z0 has been performed in ep collisions at HERA using the ZEUS detector. The search is based on the entire HERA-I and HERA-II data set, amounting to 0.49 fb-1 of integrated luminosity. The Z0 was searched in the di-jet decay mode with elastic condition defined by etamax < 3, where etamax is defined as the pseudorapidity of the energy deposit in the calorimeter closest to ... More Presented by Dr. Katarzyna WICHMANN on 5 Jul 2012 at 17:15 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments Compton scattering offers a unique opportunity to study the dynamical structure of hadrons over a wide kinematic range, with polarizabilities characterizing the hadron’s active internal degrees of freedom. We present calculations and detailed analysis of electric and magnetic and the spin-dependent dynamical polarizabilities for the lowest in mass SU(3) octet of baryons. These extensive ... More Presented by Dr. Aleksandrs ALEKSEJEVS on 5 Jul 2012 at 15:10 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions The Large Hadron electron Collider (LHeC) is a proposed facility which will exploit the LHC heavy ion beam for electron-nucleus scattering, using a new 60 GeV electron accelerator. This contribution, which is derived from the detailed simulations in the recently released Conceptual Design report, addresses the expected physics impact of the LHeC for heavy ion physics and nuclear parton density det ... More Presented by Prof. Paul NEWMAN on 6 Jul 2012 at 13:00 Type: Plenary Sessions Session: EW Physics / SUSY Track: Plenary Sessions Presented by Prof. Joao BARREIRO GUIMARAES DA COSTA on 9 Jul 2012 at 13:50 Type: Poster Sessions Session: Poster Session Track: Track 6. QCD, Jets, Parton Distributions In the era of the LHC experiments the analysis of vector boson together with n jet production becomes very important. On the one hand these processes serve as a testing environment for perturbative QCD calculations as well as detector understanding. On the other hand, W/Z+n jet production is used for new physics searches and thus one has to deal with a huge amount of irreducible Standard Model bac ... More Presented by Dr. Sascha TURCZYK on 7 Jul 2012 at 18:00 Type: Poster Sessions Session: Poster Session Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches A review of the recent progress in the theory predictions for vector-boson plus jet(s) production at the LHC is given, focussing on the discussion of electroweak corrections, where all off-shell effects due to the vector-boson decay are included consistently. The electroweak contributions amount up to several tens of percent at high transverse momenta and thus significantly affect the V+jet produ ... More Presented by Dr. Tobias KASPRZIK on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches W-boson pair production has been studied extensively during the LEP era, amongst others leading to a precise determination of the W-boson mass and width. At the LHC, vector-boson pair production will be of similar importance. Such processes constitute an important irreducible background to SM-Higgs production in the intermediate-mass region and have already been used to exclude a wide range of mas ... More Presented by Dr. Tobias KASPRZIK on 6 Jul 2012 at 11:30 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 15. Education and Outreach As High-Energy physics is going global, high-energy physicists and their organizations collaborate more and more not only into science but also in communicating about it. Communications play an increasing role in our society, and we face big challenges as the visibility of our field is becoming high. Networks for outreach and communications are then crucial to promote the field in a coherent way ... More Presented by Mr. Arnaud MARSOLLIER on 6 Jul 2012 at 09:50 Type: Poster Sessions Session: Poster Session Track: Track 6. QCD, Jets, Parton Distributions Experiments at LHC give evidence of similarity of multiple production mechanisms in proton interactions at high multiplicities [1] and central collisions of relativistic heavy ions (RHIC). Studies at high multiplicity (more than mean value) region are carried out at U-70 accelerator at IHEP (Protvino). They are aimed at the search for collective phenomena. It is known that mainly pions are produc ... More Presented by Dr. Elena KOKOULINA on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP A key challenge at high luminosity hadron colliders is the selection of sufficiently pure event samples against large QCD backgrounds, whilst keeping data rates within practical bounds. The CMS trigger system performs the first step in event selection, and its performance dictates the physics reach of the experiment in many areas. As LHC luminosity continues to increase over the next decade, both ... More Presented by Dr. Ivan Kresimir FURIC on 6 Jul 2012 at 15:10 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions The exclusive photoproduction reaction gamma p -> Upsilon(1S) p has been studied with the ZEUS detector in ep collisions at HERA.The exclusive electroproduction of two pions in the mass range 0.4 < M(pipi) < 2.5 GeV has also been studied with the ZEUS detector at HERA. The two-pion invariant-mass distribution is interpreted in terms of the pion electromagnetic form factor, |F(M(pipi)|, assuming t ... More Presented by Prof. Sampa BHADRA on 7 Jul 2012 at 16:30 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions We report on the latest CMS measurements of exclusive and diffractive production of dijets, dimuons, dielectrons and diphotons in pomeron- and photon-induced collisions in p-p at 7 TeV. The data are compared to various theoretical predictions. Presented by Dr. Robert CIESIELSKI on 6 Jul 2012 at 14:15 Type: Plenary Sessions Session: Flavour Physics Track: Plenary Sessions Presented by Prof. Yoshitaka KUNO on 9 Jul 2012 at 16:40 Type: Plenary Sessions Session: QCD Track: Plenary Sessions Presented by Dr. Paul NEWMAN, Paul NEWMAN, Paul Richard NEWMAN on 10 Jul 2012 at 10:00 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY Proposed e+e- linear colliders a with center-of-mass energy from 250 GeV to 3 TeV (International Linear Collider, ILC and Compact Linear Collider, CLIC) are ideal tools for exploring supersymmetry, in addition to precision Higgs, top, W and Z physics and more generic searches for BSM phenomena. These machines cover a wide range of possible mass spectra of sparticles from 100 GeV to 1.5 TeV, and ca ... More Presented by Dr. Taikan SUEHARA on 5 Jul 2012 at 16:45 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP An accelerator complex that can produce ultra-intense beams of muons presents many opportunities to explore new physics. A facility of this type is unique in that, in a relatively straightforward way, it can present a physics program that can be staged and thus move forward incrementally, addressing exciting new physics at each step. An intense cooled low-energy muon source can be used to perfor ... More Presented by Prof. Donald HARTILL on 6 Jul 2012 at 12:45 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 4 - Top Quark Physics Results on the search for flavor-changing neutral-currents (FCNC) in top-quark production and decay are reported, with data collected with the ATLAS detector at a center-of-mass energy of sqrt(s) = 7 TeV. The single top quark topology is used to place limits on sigma(qg -> t) x B(t -> Wb) (q=u,c). A search is also performed for top-quark pair events, with one top quark decaying through the t->Zq ... More Presented by Dr. Markus CRISTINZIANI on 6 Jul 2012 at 11:30 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches Production in association with a vector boson$V$is a distinctive mode of production for a Higgs boson$H$without tree-level couplings to fermions, known as a fermiophobic Higgs boson. We focus on$HV$associated production with$H$decay into a pair of photons, and$V$into a pair of jets, with the goal of distinguishing a fermiophobic Higgs boson from the standard model Higgs boson. Performi ... More Presented by Dr. Edmond BERGER Type: Poster Sessions Session: Poster Session Track: Track 2 - Beyond the Standard Model - SUSY Suppressing the bunch of top quark background is essential in finding the top squark at the LHC. Currently we are not optimized in the discrimination of them. We suggest the azimuthal angle around the beam axis be a good discriminator and show its utility in the dijet+Missing Energy channel at the LHC with 14 TeV center of energy. Presented by Dr. Doyoun KIM on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments We would like to show the existence of finite energy SU(2) Yang-Mills-Higgs particles of one-half topological charge. The 't Hooft Abelian magnetic fields of these solutions at spatial infinity correspond to the magnetic field of a positive one-half magnetic monopole located at the origin,$r=0$, and a semi-infinite Dirac string singularity located on one half of the$z$-axis which carries a magne ... More Presented by Prof. Rosy TEH on 5 Jul 2012 at 14:55 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos The neutrino mixing angle θ13 is the gateway of studying CP violation in lepton sectors and determines the trend of future neutrino experiments. The Daya Bay Reactor Neutrino Experiment aims to precisely determine θ13, with the design sensitivity better than 0.01 in sin^22θ13 at the 90% C.L. The experiment takes a near-far relative measurement by comparing the observed electron-antineutrino rat ... More Presented by Dr. Liangjian WEN on 5 Jul 2012 at 11:15 Session: Flavour Physics Track: Plenary Sessions Presented by Dr. Cecilia TARANTINO on 9 Jul 2012 at 17:10 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy I will review flavour physics constraints on supersymmetric models and in particular those from b to s gamma, Bs to mu+ mu- and B to K* mu+mu- (with an emphasis on the new LHCb results). These rare transitions provide valuable information in the quest for new physics and are complementary to the direct searches. The SuperIso program will also be described. Presented by Dr. Nazila MAHMOUDI on 6 Jul 2012 at 16:00 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy The identification of the flavour of reconstructed B0 and B0s mesons at production is necessary for the measurements of oscillations and time-dependent CP asymmetries. We report on the techniques developed by the LHCb experiment for flavor tagging and on the procedures used to optimize and calibrate its performance using data samples of different flavour-specific B decays. We also describe the lat ... More Presented by Dr. Stefania VECCHI on 7 Jul 2012 at 14:15 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 2 - Beyond the Standard Model - SUSY We study the effect of squark generation mixing on squark and gluino production and decays at LHC in the Minimal Supersymmetric Standard Model (MSSM) with focus on mixing between second and third generation squarks. Taking into account the constraints from B-physics we show that various regions in parameter space exist where decays of squarks and/or gluinos into flavour violating final states can ... More Presented by Prof. Keisho HIDAKA on 6 Jul 2012 at 11:00 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions The ALICE experiment studies Pb-Pb collisions at the LHC in order to investigate the properties of the hot and dense QCD matter at extreme energy densities. Recent results from ALICE in identified particle flow allow for the exploration of the collective properties of the medium created in heavy-ion collisions. Due to their difference in mass, the strange and charm quarks are expected to couple di ... More Presented by Mr. Carlos Eugenio PEREZ LARA on 6 Jul 2012 at 12:15 Type: Poster Sessions Session: Poster Session Track: Track 14. Future Accelerators In detectors at Future Linear Colliders a Beam Calorimeter (BeamCal) is foreseen. The main BeamCal goals are coverage of low polar angles for new physics searches and beam tuning. The challenges are radiation hardness of sensors due to a large amount of beamstrahlung remnants, fast readout, fine granularity and compactness. A prototype of a BeamCal sensor made of GaAs with pad structures was ass ... More Presented by Ms. Olga NOVGORODOVA on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions We report on the latest soft and semi-hard QCD measurements in p-p collisions at the LHC including: (i) measurement of the total inelastic cross section, (ii) inclusive identified charged-hadron pT spectra, (iii) underlying event and constraints on models of multi-parton interactions, and (iv) characteristics of jet radiation as a function of pseudorapidity. Presented by Mr. Gilvan Augusto ALVES on 6 Jul 2012 at 11:45 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 2 - Beyond the Standard Model - SUSY In this talk we consider the phenomenology of minimal supergravity (mSUGRA) models in which the supersymmetry-breaking parameters are unified at a scale below the GUT scale. After a brief review of the so-called GUT-less constrained MSSM (CMSSM), we turn to a GUT-less version of mSUGRA. Of particular interest are GUT-less Polonyi models. The possibility that the recent ATLAS and CMS results may ... More Presented by Ms. Pearl SANDICK on 5 Jul 2012 at 09:15 Type: Poster Sessions Session: Poster Session Track: Track 11. Particle Astrophysics and Cosmology We study the possibility that the galactic dark matter exists in the phantom field responsible for the dark energy. The statically and spherically exact solution for this kind of the galaxy system with a supermassive black hole at its center is obtained. The solution of the metric functions is satisfied with$g_{tt} = - g_{rr}^{-1}$. In a galaxy, the background of the phantom field, which is spa ... More Presented by Mr. Ming-Hsun LI on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology (KASCADE-Grande Collaboration). High energy gamma rays produce muons in the Earth's atmosphere that can be detected and reconstructed in relatively shallow underground muon detectors such as ICECUBE and MILAGRO. Although muons of such low energy are mostly produced by charged Cosmic Ray (CR) particles, gamma produced muons (via photo-pion production) can be identified provided the detector has su ... More Presented by Dr. Paul DOLL on 7 Jul 2012 at 15:30 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology I describe how to construct new scalar field theories in four dimensions with attractive properties such as nonrenormalization theorems and interesting nonlinear classical dynamics. These generalized galileons are related to extra dimensional gravity models, and have a tight relationship to massive gravity models. Their properties suggest applications in inflation, late-time cosmic acceleration, a ... More Presented by Prof. Mark TRODDEN on 7 Jul 2012 at 16:00 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos Neutrino oscillation physics stands at an important juncture today. With the reactor experiments having measured a moderately large value of$\theta_{13}$, determination of the neutrino mass hierarchy and$\delta_{CP}$are the next problems to be solved. In this work, we explore the physics potential of T2K and NOvA, with the aim of extracting as much physics as possible from them before the next ... More Presented by Mr. Suprabh PRAKASH on 5 Jul 2012 at 16:45 Type: Poster Sessions Session: Poster Session Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy We have updated our unitary triangle fitting program based on the scan method\footnote{Global fits of the CKM matrix. G. Eigen, G.P. Dubois-Felsmann, D.G. Hitlin, F.C. Porter. Eur.Phys.J. C33 (2004) S644, e-Print: hep-ex/0312062.} to constrain the$\bar{\rho}- \bar{\eta}$plane using the standard input measurements (CKM matrix elements,$\sin 2 \beta$,$B^0_{d(s)}$mixing, and$\epsilon_K$) as we ... More Presented by Prof. Eigen GERALD on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY We present a next-to-leading order calculation for the production of gluino pairs near threshold at the LHC. We show that threshold effects lead to a characteristic shape of the differential cross section around threshold and an increase of the total cross section. Presented by Dr. Peter MARQUARD on 4 Jul 2012 at 09:15 Presented by Dr. Karl KRUSZELNICKI on 7 Jul 2012 at 11:30 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions A preliminary global NLO QCD analysis of the HERA data is presented. The following data sets are used in this analysis: the NC and CC inclusive DIS cross sections obtained from the combination of the measurements from H1 and ZEUS based on HERA I and HERA II data at the nominal proton beam energy, the preliminary combined inclusive NC DIS cross sections at reduced proton beam energies, the inclusi ... More Presented by Dr. Ringaile PLACAKYTE on 4 Jul 2012 at 09:30 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches Reaching the desired precision level for W and Z processes at the LHC will require a mixture of higher-order QCD and electroweak corrections. HERWIRI2 is a step in implementing QED x QCD exponentiation in a hadronic event generator. This program implements leading electroweak corrections and coherent exclusive exponentiation in a HERWIG environment. We discuss the status of the program, recent te ... More Presented by Dr. Scott YOST on 5 Jul 2012 at 09:30 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions The BABAR Collaboration has an intensive program of studying hadronic cross sections at low-energy e+e- collisions, accessible at BaBar via initial-state radiation. Our measurements allow significant improvements in the precision of the predicted value of the muon anomalous magnetic moment. These improvements are necessary for shedding light on the current ~3.5 sigma difference between the predict ... More Presented by Dr. Andreas Martin HAFNER, Andreas HAFNER on 7 Jul 2012 at 17:00 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 5 - B-Physics Baryonic decays account for about 7% of the B-meson width, but are far less studied than decays into meson-only final states. We present new studies of the processes B- --> Sigma_c++ pbar pi- pi- and B0bar --> Lambda_c+ pbar p pbar. The former decay is a resonant subchannel of the 5-body decay B- --> Lambda_c+ pi+ pbar pi- pi-, which is the known baryonic decay mode with the largest branching frac ... More Presented by Dr. Torsten LEDDIG on 7 Jul 2012 at 11:30 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy The measurement of$B^0 \to \pi^0 \pi^0$plays a vital role in the extraction of the UT angle$\phi_2 = arg[-V_{td} V_{tb}^*/V_{ud} V_{ub}^* ]$from time-dependent CP analyses of the$B\to \pi\pi$decays. This process is also expected to exhibit direct CP violation, a measurement of which would place additional constraints on$\phi_2$. Furthermore, an improved analysis of$B^0 \to \pi^0 \pi^0$wou ... More Presented by Ms. T'Mir JULIUS on 7 Jul 2012 at 11:45 Type: Plenary Sessions Session: Heavy Ions / Lattice QCD Track: Plenary Sessions Presented by Dr. Carlos Albert SALGADO LOPEZ on 10 Jul 2012 at 11:50 Type: Poster Sessions Session: Poster Session Track: Track 3 - BSM - Non-SUSY Exotics Drawing an analogy of replacing the nucleon by heavy (chiral) quark Q, the pion by longitudinal weak boson (i.e. Goldstone boson G), and the pi-N-N coupling by G-Q-Q Yukawa coupling, we construct a statistical model for annihilation of QQ(bar) into multi-Goldstone bosons, i.e. n longitudinal weak bosons. This analogy is becoming prescient since the LHC direct bound on heavy chiral quark (the 4th g ... More Presented by Prof. George W.-S. HOU on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions The mechanism of production of heavy-flavoured mesons, containing b or c quarks, in association with vector bosons, W or Z, in the Standard Model is only partially understood. The study of events with one or two well-identified and isolated leptons accompanied by b-jets or secondary vertices is therefore crucial to refine the theoretical calculations in perturbative QCD, as well as validate associ ... More Presented by Dr. Simon Marie E DE VISSCHER on 6 Jul 2012 at 16:45 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 5 - B-Physics LHCb is a dedicated B physics experiment at the LHC. During the 2011 run the experiment collected 1.0 fb-1 of data. This large data sample allows to explore the b baryon sector with unprecedented precision. We will present the first observation of the Λb* baryons and measurements of the properties of Ξb and Ωb baryons. In addition we will present results on the production and properties of t ... More Presented by Mr. Raphael MäRKI on 5 Jul 2012 at 12:15 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 14. Future Accelerators New large accelerator complex: heavy ion collider facility NICA (Nuclotron-based Ion Collider fAcility) is under active development now at JINR (Dubna). The main goal of the project is to start in the coming 5 years experimental study of hot and dense strongly interacting baryonic matter and search for possible signs of the mixed phase and critical endpoint in heavy ion collisions (Energy √s_N ... More Presented by Dr. Grigory TRUBNIKOV on 7 Jul 2012 at 10:15 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions Photoproduction of beauty and charm quarks in events with at least two jets has been measured with the ZEUS detector at HERA using an integrated luminosity of 133 pb-1 The fractions of jets containing b and c quarks were extracted using the invariant mass of charged tracks associated with secondary vertices and the decay-length significance of these vertices. Differential cross sections as a funct ... More Presented by Dr. Michel SAUTER on 6 Jul 2012 at 16:30 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions The production of beauty quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared Q^2 > 10 GeV2, using an integrated luminosity of 363 pb-1. The beauty events were identified using electrons from semileptonic b decays with a transverse momentum 0.9 < p_T^e < 8 GeV and pseudorapidity |eta^e| < 1.5. Cross sections for beauty production were measur ... More Presented by Dr. Alessandro BERTOLIN on 6 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions We review the present landscape of heavy-quarkonium theory, its tests by worldwide collider and fixed-target experiments, and the future perspectives offered by the LHC. Special emphasis is placed on the effective quantum field theory of nonrelativistic QCD (NRQCD), endowed with the factorization theorem conjectured by Bodwin, Braaten, and Lepage, which arguably constitutes the most probable candi ... More Presented by Prof. Bernd KNIEHL on 7 Jul 2012 at 14:00 Type: Plenary Sessions Session: Opening Ceremony / LHC Higgs Search Updates Track: Plenary Sessions Presented by Dr. Richard HAWKINGS on 8 Jul 2012 at 09:30 Type: Plenary Sessions Session: Opening Ceremony / LHC Higgs Search Updates Track: Plenary Sessions Presented by Prof. Joseph INCANDELA on 9 Jul 2012 at 10:00 Type: Plenary Sessions Session: Opening Ceremony / LHC Higgs Search Updates Presented by Dr. Shalhout SHALHOUT, Dr. Shalhout SHALHOUT on 9 Jul 2012 at 10:30 Presented by Shalhout SHALHOUT, Shalhout SHALHOUT Type: Poster Sessions Session: Poster Session Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches We investigate the potential for measuring the relative couplings of a low-mass Higgs boson at the Large Hadron Collider using W H, ZH, and ttH production, where the Higgs boson decays to tau-lepton pairs. With 100 fb−1 of sqrt(s) = 14 TeV pp collision data we find that these modes can improve coupling-ratio sensitivity for a Higgs boson mass between 115 and 135 GeV/c2 . Presented by Dr. Sinead FARRINGTON on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 2 - Beyond the Standard Model - SUSY In minimal models of gauge mediated SUSY breaking the mass of the lightest neutral Higgs boson cannot exceed about 118 GeV, provided that the SUSY particle masses are below 2 TeV. This work investigates the Higgs boson mass in the presence of messenger--matter mixing. Such mixing would generate a non-zero A-term (trilinear soft SUSY braking term) at the messenger scale, which enhances the Higgs ... More Presented by Prof. Kaladi S. BABU on 5 Jul 2012 at 09:30 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions The cross sections for neutral current deep inelastic scattering in e+p collisions with a longitudinally polarised positron beam have been measured using the ZEUS detector at HERA. The single-differential cross-sections dsigma/dQ2, dsigma/dx and dsigma/dy and the double-differential cross sections in Q2 and x are measured in the kinematic region Q2 > 185 GeV2 for both positively and negatively pol ... More Presented by Dr. Achim GEISER on 4 Jul 2012 at 09:15 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 13. Detectors and Computing for HEP We review the physics foundations of hadron calorimetry with the help of detailed simulation based on GEANT5. Detailed studies of spatial and temporal development of hadronic showers are presented and the contributions of various particles species to the observed signals are evaluated. We identify the principal contributions to the energy resolutions and demonstrate the importance of the total ab ... More Presented by Dr. Adam PARA on 7 Jul 2012 at 17:45 on 5 Jul 2012 at 09:00 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments The formulation of consistent theories involving particles with arbitrary spin represents an old open theoretical challenge. In the massless case the corresponding gauge theories provide far-reaching generalisations of Yang-Mills theory and General Relativity, while massive higher-spin states are known to represent essential ingredients of the spectrum of String Theory. I will describe the basics ... More Presented by Dr. Dario FRANCIA on 5 Jul 2012 at 14:20 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments We have performed a holographic calculation of the hadronic contributions to the anomalous magnetic moment of the muon, using the gauge/gravity duality. We compute the leading order hadronic (HLO) contribution to the anomalous magnetic moment of muon, amu(HLO), and find amu(HLO) =470.5 x 10^{-10} in AdS/QCD with two light flavors, which is compared with the currently revised BABAR data estimated f ... More Presented by Dr. Doyoun KIM on 5 Jul 2012 at 10:00 Type: Plenary Sessions Session: IUPAP Prize Winners / CKM Track: Plenary Sessions Presented by Dr. Pier ODDONE Session: Physics Highlights / Detectors & Computing Track: Plenary Sessions Presented by Prof. Riccardo BARBIERI on 11 Jul 2012 at 15:00 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments We present a formulation of the operator product expansion that is infrared finite to all orders in the attendant massless non-Abelian gauge theory coupling constant, which we will often-times associate with the QCD theory, the theory that we actually have as our primary objective in view of the operation of the LHC at CERN. We make contact in this way with the recently introduced IR-improved DGLA ... More Presented by Prof. Bennie WARD on 5 Jul 2012 at 11:00 Type: Plenary Sessions Session: IUPAP Prize Winners / CKM Track: Plenary Sessions Presented by Phillip URQUIJO Type: Plenary Sessions Session: IUPAP Prize Winners / CKM Track: Plenary Sessions Presented by Teppei KATORI Presented by Prof. Hiroaki AIHARA, Dr. Pier ODDONE on 10 Jul 2012 at 17:10 Type: Poster Sessions Session: Poster Session Track: Track 6. QCD, Jets, Parton Distributions The identification of jets associated with the production of b quarks is an essential tool both for the measurement of standard-model processes and in the search for physics beyond this model at the Large Hadron Collider. The CMS experiment has developed a variety of algorithms that use the impact parameters of charged-particle tracks, the properties of reconstructed decay vertices, the presence o ... More Presented by Prof. Sudhir MALIK on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 2 - Beyond the Standard Model - SUSY There is evidence for a 130 GeV$\gamma$-ray line at the Galactic Center in the \emph{Fermi} Large Area Telescope data. Dark matter candidates that explain this feature should also annihilate to Standard Model particles, resulting in a continuous spectrum of photons. To study this continuum, we analyze the \emph{Fermi} data down to 5 GeV, restricted to the inner$3^\circ$of the Galaxy. We pla ... More Presented by Prof. Jacob WACKER on 6 Jul 2012 at 11:15 Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3 Track: Track 3 - BSM - Non-SUSY Exotics In this talk I will describe the implications of a 125 GeV Higgs in Composite Higgs Models. I will focus on the most relevant scenario where the Higgs is a pseudo-Goldstone boson and Standard Models fields are partially composite. Several models can be constructed characterized by the global symmetries and fermionic content of the composite sector. The Higgs can be light (~125 GeV) for a moderate ... More Presented by Mr. Michele (CH) REDI on 7 Jul 2012 at 17:00 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 3 - BSM - Non-SUSY Exotics We study the implications of the experimental results on the mu to e gamma decay rate and the muon anomalous magnetic moment on muonic lepton flavor violating processes, such as mu to 3 e and mu N to e N. We use a model independent approach in this analysis, where these processes are considered to be loop induced by exchanging spin 1/2 and spin 0 particles. We explore two complementary cases, whic ... More Presented by Prof. Chun-Khiang CHUA on 6 Jul 2012 at 16:30 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY The implications of a discovery, or a non-discovery, of the lightest Higgs boson will be discussed in terms of constrained and general MSSM scenarios. Exploring the MSSM through the Higgs sector is an alternative and complementary path to direct searches, and tight constraints on the parameter space can be obtained. Such constraints will be discussed in addition to, very briefly, the interplay wit ... More Presented by Dr. Nazila MAHMOUDI on 5 Jul 2012 at 15:00 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 2 - Beyond the Standard Model - SUSY We will present a study of the NMSSM with a low cutoff in the light of the recent experimental hints for a (close to) SM like Higgs at 125 GeV. The introduction of a singlet with a large value of lambda reduces the fine tuning in comparison to the MSSM and provides a solution to the mu-problem. We determine the natural region in parameter space with a fine tuning better than 10% which satisfies el ... More Presented by Dr. Michael SCHMIDT on 5 Jul 2012 at 09:45 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches We present an analysis with improved sensitivity to the light charged Higgs ($m_{H^+} < m_t-m_b$) searches in the top quark decays$t \to b H^+ \to b (\tau^+\nu_\tau) + ~{\rm c.c.}$in the$t\bar{t}$and single$t/\bar{t}$production processes at the LHC. In the Minimal Supersymmetric Standard Model (MSSM), one anticipates the branching ratio${\cal B} (H^+ \to \tau^+\nu_\tau)\simeq 1$over alm ... More Presented by Mr. Javier LLORENTE on 6 Jul 2012 at 14:30 Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches The search for the Standard Model (SM) Higgs boson at the Tevatron has been highly successful in driving the first Higgs exclusions since LEP. This search by CDF is performed using the full Run2 dataset and looks specifically in the Higgs to WW final state of two charged leptons ($e,\mu$) and two neutrinos from the collision of$p-\bar{p}$pairs at$\sqrt{(s)} = 1.96$TeV. This version of the anal ... More Presented by Mr. Massimo CASARSA on 7 Jul 2012 at 12:00 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions The production of charm and beauty in pp collisions at 7 TeV has been studied with the ATLAS detector using fully reconstructed D^(*) mesons. The beauty production cross-sections have been obtained using events with a D^* and a muon in the final state. The results are compared with the NLO QCD predictions Presented by Dr. James CATMORE on 6 Jul 2012 at 17:00 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY Despite the absence of experimental evidence, weak scale supersymmetry remains one of the best motivated and studied Standard Model extensions. This talk summarises recent results on inclusive searches for supersymmetric squarks and gluinos in events containing jets, missing transverse momentum with or without leptons. The searches use the full data sample recorded in 2011 at sqrt(s)=7 TeV centre- ... More Presented by Mr. Moritz BACKES on 4 Jul 2012 at 09:30 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics We present measurements of the production of top quarks in proton - proton collisions at 7 TeV with the ATLAS detector at the Large Hadron Collider. The cross section of pair - produced top quarks is measured in several channels, including the single lepton, dilepton, all hadronic channel, some using information from b-tagging, as well as channels involving tau leptons. Presented by Mr. Frederic DERUE on 4 Jul 2012 at 09:00 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 5 - B-Physics We present a precise measurement of time-dependent CP violation in the neutral$B$decays into charmonium and$K^0$with a large data sample containing 772 million$B\overline{B}$pairs collected at the$\Upsilon(4S)$resonance with the Belle detector at the KEKB asymmetric-energy$e^+e^-$collider. Presented by Mr. Bastian KRONENBITTER on 7 Jul 2012 at 14:45 Type: Poster Sessions Session: Poster Session Track: Track 6. QCD, Jets, Parton Distributions The double differential inelastic J/psi photoproduction cross section as function of the squared transverse momentum of the J/psi in bins of the inelasticity z has been measured in ep collisions with the ZEUS detector at HERA. An integrated luminosity of 468 pb-1 was used corresponding to the full data sample collected by the ZEUS experiment. The events were required to have 0.1 < z < 0.9, pt ... More Presented by Dr. Alessandro BERTOLIN on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 15. Education and Outreach The International Particle Physics Outreach Group (IPPOG) has developed an educational activity that brings the excitement of cutting-edge particle physics research into the classroom. Each year, since 2005, thousands of high school students in many countries all over the world come to nearby universities or research centres for one day in order to unravel the mysteries of particle physics and b ... More Presented by Prof. Farid OULD-SAADA on 7 Jul 2012 at 10:10 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions We present the interplay between the new IR-improved DGLAP-CS theory and the precision of NLO parton shower/ME matched MCs as it is realized by the new MC Herwiri1.031 in interface to MC@NLO. We discuss phenomenological implications using comparisons with recent LHC data on single heavy gauge boson production. Presented by Prof. Bennie WARD on 5 Jul 2012 at 16:30 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY This talk we will present a compilation of all CMS new physics search results in the simplified model space and discuss the advantages and limitations of such interpretations. Presented by Mr. Christopher ROGAN on 5 Jul 2012 at 14:00 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions We will discuss the nuclear-matter effects on J/Psi and Upsilon production at RHIC and the LHC in proton-nucleus and, by extension, in nucleus-nucleus collisions. In the Upsilon case, we will argue that (i) the Upsilon break-up probability can be neglected in a first approximation, (ii) the gluon shadowing and antishadowing are not strong enough to describe forward RHIC data, (iii) the backward da ... More Presented by Dr. Jean-Philippe LANSBERG, Jean-Philippe LANSBERG, Jean-Philippe LANSBERG, Jean-Philippe LANSBERG on 5 Jul 2012 at 09:30 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions We present a rigorous next-to-leading order analysis of J/psi yield and polarization within the factorization theorem of nonrelativistic QCD (NRQCD). To the orders considered, this framework depends on the values of three color-octet long-distance matrix elements (LDMEs), which are predicted to be process-independent. We extract their values in a global fit to inclusive J/psi production yield data ... More Presented by Dr. Mathias BUTENSCHOEN on 7 Jul 2012 at 14:15 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions We present studies of the substructure in multijet and V+jets events at CMS. Several jet grooming techniques are investigated, and We present measurements of jet properties and jet production rates at CMS with pp collisions at 7 TeV. Inclusive jet and dijet differential cross sections are compared to NLO QCD predictions with various PDF sets. We also present studies of the jet substructure in QCD ... More Presented by Mr. Sanmay GANGULY on 5 Jul 2012 at 14:45 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions Isolated-photon+jet production in ep collisions at a centre-of-mass energy of 318 GeV has been measured with the ZEUS detector at HERA using an integrated luminosity of up to 300 pb-1. Measurements of prompt-photon+jet cross sections are presented as functions of the photon transverse energy and pseudorapidity in a wide range of exchanged-photon virtuality. In addition, differential gamma+jet cros ... More Presented by Prof. Claudia GLASMAN on 5 Jul 2012 at 14:00 Type: Plenary Sessions Session: QCD Track: Plenary Sessions Presented by Dr. Dmitry BANDURIN on 9 Jul 2012 at 09:00 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions The associated production of jets and vector bosons allows for stringent tests of perturbative QCD calculations and is sensitive to the possible presence of new physics beyond the Standard Model. A measurement of jet production rates in association with W and Z bosons, or photons, in proton-proton collisions at a 7 TeV center-of-mass energy is presented, using data collected with the CMS detector. ... More Presented by Dr. Piergiulio LENZI on 5 Jul 2012 at 12:00 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy Semileptonic kaon decays offer the most precise determination of the CKM matrix element |Vus|. The experimental precision is however limited by the knowledge of the form factors of this decay, since these enter both the phase space integral and the detector acceptances. The NA48/2 experiment presents new high precision measurements of the form factors of the semileptonic decays of charged kaons ... More Presented by Dr. Cristina BIINO on 4 Jul 2012 at 09:30 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos LAGUNA (Large Apparatus for Grand Unification and Neutrino Astrophysics)-LBNO(Long-Baseline Neutrino Oscillation)* is the proposal for a long baseline neutrino oscillation experiment with a new conventional neutrino beam aimed at a next generation deep-underground neutrino observatory composed of a double phase liquid Argon detector and a magnetized iron calorimeter located at the Pyhsalami mine, ... More Presented by Dr. Silvestro DI LUISE on 5 Jul 2012 at 15:30 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 3 - BSM - Non-SUSY Exotics With 5 fb^{-1} LHC data at 7 TeV collected in 2011, current mass limits of the chiral 4th generation quarks have reached 600 GeV, nominally entering the regime of perturbative unitarity violation. The very large Yukawa couplings of these quarks may require nonperturvative treatment, including the possible formation of tightly Yukawa-bound "mesons". Assuming an almost degenerate 4th generation qu ... More Presented by Dr. Hiroshi YOKOYA on 6 Jul 2012 at 15:15 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 14. Future Accelerators The Large-Hadron-Collider (LHC) operated at CERN has been re-commissioned after a short scheduled technical maintenance stop and reached its previous peak performance safely and after only about a month in the beginning of 2012. The operational experience gained during the previous year and additional analysis of the robustness of the magnet interconnections as well as the measured available tr ... More Presented by Dr. Ralph STEINHAGEN on 7 Jul 2012 at 11:00 Type: Poster Sessions Session: Poster Session Track: Track 2 - Beyond the Standard Model - SUSY A broad class of scenarios for new physics involving additional strongly-interacting fields predict signatures at hadron colliders which consist solely of large numbers of jets and substantial missing transverse energy. We investigate the prospects for discovery in such scenarios using a search strategy in which jet multiplicity and missing transverse energy are employed as the primary criteria f ... More Presented by Dr. Jason KUMAR on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos Unified theories based on SO(10) are ideal settings to address the masses and mixings of neutrinos. In minimal SO(10) models there are just two Yukawa coupling matrices, one associated with a 10 and one with a 126 of Higgs bosons (as opposed to five such matrices in the standard model). This results in a predictive framework for the neutrinos: all neutrino mixing angles and mass ratios can be co ... More Presented by Prof. Kaladi S. BABU on 5 Jul 2012 at 17:15 Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3 Track: Track 3 - BSM - Non-SUSY Exotics We propose an extension of the 4+1D$SU(5)$domain-wall braneworld of Davies, George and Volkas which includes the addition of a discrete$A_4$flavor symmetry. We show that lepton mixing and light Majorana neutrino masses can be generated from the additional$A_{4}$physics while at the same time sufficient parameter freedom can be maintained in the charged fermion sector to produce charged fermi ... More Presented by Mr. Callen BENJAMIN on 7 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 11. Particle Astrophysics and Cosmology Construction of the IceCube neutrino observatory was completed in early 2011, including a low-energy in-fill extension. This DeepCore sub-detector offers exciting opportunities for neutrino physics in the energy range of 10 GeV to 1 TeV. IceCube searches indirectly for dark matter via neutrinos from dark matter self-annihilations and has a high discovery potential through striking signatures. We r ... More Presented by Mr. Matthias DANNINGER on 6 Jul 2012 at 16:45 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos The NEMO-3 experiment, designed to search for neutrinoless double beta decay, was carried out from 2003 to 2011 in the Modane Underground Laboratory in the Frejus Tunnel. The detector employed thin isotopic foils surrounded by a drift chamber and scintillator blocks to reconstruct topology, energy, and timing features of nuclear decays. This multi-observable technique offers a powerful means not ... More Presented by Prof. Karol LANG on 4 Jul 2012 at 09:45 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 10. Lattice QCD We present some preliminary results for single-particle and multi-particle states obtained on anisotropic, dynamical 2+1 lattices (24^3) generated by the Hadron Spectrum Collaboration. We use the Stochastic LapH algorithm to generate the all-to-all quark propagators. Presented by Prof. Keisuke JUGE on 6 Jul 2012 at 09:15 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy We present a measurement of the decay$B\to\tau\nu$using the full Belle data set including$772 \times 10^6B\bar{B}$collected at the KEKB asymmetric-energy$e^+e^-$collider. The$B\bar B$pair events are tagged by fully reconstructing one B meson decaying in a hadronic mode and detecting the$B\to\tau\nu$candidate in the recoil. We obtain the branching fraction for$B\to\tau\nu$and present ... More Presented by Mr. Youngmin YOOK on 5 Jul 2012 at 10:00 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 5 - B-Physics Within the standard model, the decay B+ --> tau+ nu has the largest branching fraction of any leptonic B decay, yet its reconstruction is made complicated by the multiple final-state neutrinos. The study of this decay is made possible by the ability to reconstruct the other B in the event, unique to the e+e- environment of the B factories. We present the result of an improved analysis using the fu ... More Presented by Dr. Guglielmo DE NARDO on 4 Jul 2012 at 09:45 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches In this talk we consider very light Higgs fields in BMSSM(Beyond MSSM). The spectrum below TeV scale is the same as the MSSM but the Higgs potential is modified and is well described in terms of effective dimension five and six operators. A correction from the BMSSM operators allows us to consider new parameter space of Higgs sector which is not allowed in the MSSM. It can be regarded as a constra ... More Presented by Dr. DOYOUN KIM on 6 Jul 2012 at 17:15 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology Three dark matter direct detection experiments (DAMA, COGENT and CRESST) have reported a possible signal of WIMP interaction corresponding to very light particles, close to the edge of the XENON-100 and CDMS sensitivity. Imposing the latest constraints from colliders, flavour physics, electroweak precision tests and dark matter searches, we show that viable MSSM scenarios with a light neutralino, ... More Presented by Dr. Nazila MAHMOUDI on 7 Jul 2012 at 11:30 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY We discuss the phenomenology of light scalar tops (stops) in the minimal supersymmetric standard model (MSSM). We analyse the discovery potential of stops in the co--annihilation region at the Large Hadron Collider (LHC). The bino-like neutralino is the lightest supersymmetric particle (LSP) and the lighter stop is the next-to-LSP. Such scenarios can be consistent with electroweak baryogenesis a ... More Presented by Dr. Jong Soo KIM on 5 Jul 2012 at 15:15 Type: Plenary Sessions Session: Neutrinos Track: Plenary Sessions Presented by Prof. Takashi KOBAYASHI on 10 Jul 2012 at 09:00 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology (KASCADE-Grande Collaboration). Muons have never been used up to now to reconstruct the hadron longitudinal development of Extensive-Air-Showers (EAS) induced by Cosmic Rays (CR) with sufficient accuracy, due to the difficulty of building large area ground-based muon telescopes. The Muon Tracking Detector (MTD) in the KASCADE-Grande experiment (128 m², Eµ>0.8 GeV) allows to study the angular c ... More Presented by Dr. Paul DOLL on 7 Jul 2012 at 15:15 Type: Poster Sessions Session: Poster Session Track: Track 6. QCD, Jets, Parton Distributions A thermodynamical bag model is used to calculate the nucleon structure function by treating the quarks and gluons as Fermi and Bose gases. It is found to agree well with the experimental data. In this article this model is used to calculate the longitudinal structure function which is related to the ratio of absorption cross section for longitudinally and transversely polarized virtual photons. Th ... More Presented by Dr. Krishna Kumar SINGH on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology Germanium detectors with sub-keV sensitivities offer a unique opportunity to probe low-mass WIMP Dark Matter, where there is an intense interest inspired by possible allowed regions indicated by the CoGeNT experiment. The TEXONO-CDEX Collaboration has been pursuing such research program at the Kuo-Sheng Neutrino Laboratory (KSNL) in Taiwan and in the China Jinping Underground Laboratory (CJPL) in ... More Presented by Dr. Hau-Bin LI on 7 Jul 2012 at 10:15 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP A precision luminosity measurement is of critical importance for the ATLAS physics program, both for searches for new physics as well as for precision measurements of Standard Model cross-sections. The absolute calibration of the ATLAS luminosity scale is based on beam separation (van der Meer) scans which are used to calibrate a variety of luminosity-sensitive detectors. These detectors then ... More Presented by Mr. Eric TORRENCE on 6 Jul 2012 at 10:00 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions We present the MBR (Minimum Bias Rockefeller) Monte Carlo simulation of (anti)proton-proton interactions and its implementation in the PYTHIA8 event generator. We discuss the total, elastic, and total-inelastic cross sections, and three contributions from diffraction dissociation processes that contribute to the latter: single diffraction, double diffraction, and central diffraction or double-Pome ... More Presented by Dr. Robert CIESIELSKI on 5 Jul 2012 at 16:45 Type: Poster Sessions Session: Poster Session Track: Track 8. Neutrinos This poster presents preliminary results from the MINERvA experiment. We present the muon neutrino CC inclusive cross section measurement, performed as a ratio across different nuclear materials. Presented by Dr. Heather RAY on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos The MINOS experiment finished data collection in April this year. We have made precision measurements of the oscillation parameters using both neutrino (10.7e20pot) and anti-neutrino (3.3e20pot) enhanced beams and with atmospheric neutrinos (37.9 kt.y). The atmospheric neutrino sample can also be separated into neutrino and antineutrino samples with the magnetic field in the far detector. Updated ... More Presented by Dr. Giles BARR on 5 Jul 2012 at 11:30 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology We discuss inflation models in supergravity, where the inflaton resides in the matter sector of the theory. These models, referred to as matter inflation, are based on a tribrid structure in the superpotential and allow for a Heisenberg symmetry or a shift symmetry for solving the eta-problem. Possible close connections to particle physics theories are discussed, such as sneutrino hybrid inflation ... More Presented by Prof. Stefan ANTUSCH on 7 Jul 2012 at 16:15 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments The unitarity method is a key part of the set of on-shell methods for calculating gauge-theory amplitudes both analytically and numerically. These methods have been used successfully to obtain the one-loop amplitudes needed for a variety of cutting-edge high-multiplicity next-to-leading order calculations for LHC physics. They have been applied both to analytic calculations ... More Presented by Dr. David KOSOWER on 4 Jul 2012 at 09:20 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions The inclusive e±p single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA. The data were taken at a centre-of-mass energy of √s = 319 GeV with a total integrated luminosity of 329.1 pb−1 shared between two lepton beam charges and two longitudinal lepton polarisation modes. The differential cross sections are measured in ... More Presented by Mr. Zhiqing Philippe ZHANG on 4 Jul 2012 at 09:00 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions The transversity distribution function, which describes the quark transverse polarization inside a transversely polarized nucleon, is the least known leading-twist component of the QCD description of the partonic structure of the nucleon. Transversity can be extracted from semi-inclusive deep-inelastic-scattering data where, however, it couples to a new fragmentation function, called the Collins f ... More Presented by Dr. Isabella GARZIA on 7 Jul 2012 at 16:45 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos The T2K experiment is a long baseline neutrino oscillation experiment designed for the primary goal of measuring oscillations of muon neutrinos to electron neutrinos, thereby providing an appearance measurement of theta_13. One of the major backgrounds of the electron neutrino appearance measurement is from neutral current muon neutrino interactions where a single neutral pion is produced and th ... More Presented by Dr. Glenn LOPEZ on 5 Jul 2012 at 12:15 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches We measure the cross section and differential distributions for the production of a weak bosons (W or Z) in association with a photon in data collected with the D0 detector at the Fermilab Tevatron ppbar collider at sqrt(s)=1.96 TeV and corresponding to integrated luminosities of up to 6.2 fb-1. The W and Z bosons are identified via their leptonic decays to electrons or muons. The results obtained ... More Presented by Prof. Heidi SCHELLMAN on 6 Jul 2012 at 11:15 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions Measurements of the total and differential cross section for the production of b-quarks in association with either W or Z bosons in ppbar collisions at sqrt(s)=1.96 TeV are presented using data collected with the D0 detector at the Fermilab Tevatron collider. The W and Z bosons are identified via their leptonic decays, while the fraction of b-jets is determined via an algorithm that employs the ki ... More Presented by Dr. Avto KHARCHILAVA Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions Direct production of bosons are a powerful tool in heavy ion collisions. Their rates provide access to the initial state parton distribution functions, which are expected to be modified by nuclear effects. They also provide a means to calibrate the expected energy of jets that are produced in the medium, and thus are a tool to probe the physics of jet quenching more precisely both through jet ra ... More Presented by Prof. Max KLEIN on 5 Jul 2012 at 09:00 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions This talk will present the results of the azimuthal anisotropy of charged particle production and two particle correlations in Pb + Pb collisions measured with the ATLAS experiment. The results are obtained with multi-particle correlations and compared with the event plane method. A complete set of v_n harmonics measured from central to peripheral events covers a pseudo-rapidity range of |eta| < ... More Presented by Prof. Ehud DUCHOVNI on 6 Jul 2012 at 11:00 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 5 - B-Physics Using data collected in 2011, the ATLAS Collaboration has measured the lifetime and mass of the Lambda_b, the lifetimes and masses of the B_d and B_s mesons, and the average lifetime for inclusive B production at 7 TeV center of mass energy in proton-proton collisions. The mass ot the Lambda_b is measured with the precision above the world average. Polarization measurements of the Lambda_b are pla ... More Presented by Dr. Konstantin TOMS on 5 Jul 2012 at 11:45 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches A measurement of tau polarization in W-> tau nu decays is reported with data collected by the ATLAS experiment. It is measured from the energies of the decay products in hadronic tau decays with a single final state charged particle, and it is found in agreement with the Standard Model prediction. Presented by Dr. Sarah Marie DEMERS on 5 Jul 2012 at 16:45 Type: Poster Sessions Session: Poster Session Track: Track 6. QCD, Jets, Parton Distributions Deep-inelastic positron-proton scattering events at low photon virtuality Q2 with a forward jet, produced at small angles with respect to the proton beam, are measured with the H1 detector at HERA. A subsample of events with an additional jet in the central region is also studied. For both samples differential cross sections and normalised distributions are measured as a function of the azimuthal ... More Presented by . H1 COLLABORATION on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches We present a measurement of the W boson mass using data corresponding to an integrated luminosity of 4.3 fb-1 collected with the D0 detector during Run 2 at the Fermilab Tevatron ppbar collider. With a sample of 1,677,394 W---> e nu candidate events, we measure M_W = 80.367 +/- 0.026 GeV. This result is combined with an earlier D0 result determined using an independent Run 2 data sample, correspo ... More Presented by Dr. Jan STARK on 5 Jul 2012 at 16:30 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches We present a combined measurement of the cross section for the simultaneous production of two vector bosons (WZ,ZZ), where one of the bosons decays leptonically (W-->lv, Z-->ll or Z-->vv) and the other Z boson decays to bbar. The measurement uses the complete Run 2 dataset collected with the D0 detector in ppbar collisions at sqrt(s)=1.96 TeV, and combines the three leptonic decay modes mentioned ... More Presented by Dr. Bjorn PENNING on 6 Jul 2012 at 14:00 Type: Poster Sessions Session: Poster Session Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches The Z to tau tau cross section has been recently measured using data collected with the ATLAS detector corresponding to the integrated luminosity of 1.34 − 1.55 fb-1. The analysis is performed in three different final states determined by decay modes of the tau leptons - so-called electron + hadronic tau, muon + hadronic tau and electron + muon channels. Cross sections are measured separately in ... More Presented by Ms. Jana NOVAKOVA on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 4 - Top Quark Physics A measurement is presented of the charge asymmetry in top-pair production in proton-proton collisions at the LHC at a centre-of-mass energy of 7 TeV. The data are collected by the CMS experiment during the year 2011. The analysis uses events with one charged lepton and at least four jets. In order to measure the charge asymmetry in charge-symmetric initial state processes, the difference of absolu ... More Presented by Dr. Thorsten CHWALEK on 5 Jul 2012 at 09:15 Type: Poster Sessions Session: Poster Session Track: Track 8. Neutrinos One of the main physics goal of the T2K experiment is the measurement of the angle theta_13 in the neutrino mixing matrix. This is done through the observation of nu_e appearance in the nu_mu neutrino beam. The main background to this measurement is the intrinsic nu_e beam component that has to be measured before the oscillation at the T2K Near Detector (ND280). We performed two analyses to at ND2 ... More Presented by Dr. Glenn LOPEZ on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 4 - Top Quark Physics We present measurements of the forward-backward asymmetry and the lepton charge asymmetry in lepton plus jets and dilepton final states in top antitop quark pair production in proton antiproton collisions, using up to 10 fb-1 of data collected by D0 in Run II. We present unfolded results corrected for acceptance and resolution effects. In case of the lepton plus jets channel the analysis is also p ... More Presented by Dr. Alexander Josef GROHSJEAN on 5 Jul 2012 at 09:45 Type: Poster Sessions Session: Poster Session Track: Track 6. QCD, Jets, Parton Distributions We present the measurements of inclusive production cross sections for forward jets, as well for jets in dijet events with at least one jet emitted at central and the other at forward pseudorapidities in proton-proton collisions at sqrt{s} = 7 TeV. The measurements were performed in the range of transverse momenta pT = 35 – 150 GeV/c within pseudorapidities 3.2 < |eta| < 4.7, and central jets wi ... More Presented by Dr. Salim CERCI on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos We present the first measurement of the muon neutrino spectrum at the T2K near detector, ND280, using the data collected at the JPARC accelerator facility in Tokai, Japan. ND280 is located 280 meters downstream from the target and 2.5^o off-axis from the direction of the beam. The measured spectrum at ND280 constrains the flux and cross section uncertainties in the T2K oscillation analysis. We sel ... More Presented by Ms. Melody RAVONEL on 5 Jul 2012 at 12:00 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 4 - Top Quark Physics A measurement of the top-pair mass distribution in tt events is presented using proton-proton collision events at the LHC at a centre-of-mass energy of 7 TeV. The data are collected with the CMS experiment during the year 2011. The analysis is performed using several final states originating from top-pair production. The measurement is then used to search for massive resonances decaying into top-p ... More Presented by Prof. Freya BLEKMAN on 6 Jul 2012 at 14:00 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics We present measurements of the top - quark mass in proton - proton collisions at 7 TeV with the ATLAS detector at the Large Hadron Collider. The top mass is determined by making use of a two - dimensional template method in the single lepton channel, and a one - dimensional template method in the all - hadronic channel. An indirect extraction of the top - quark mass from the measurement of th ... More Presented by Dr. Giuseppe SALAMANNA on 5 Jul 2012 at 12:00 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics The mass of the top quark is a fundamental parameter of the standard model and has to be determined experimentally. The D0 experiment at the Fermilab Tevatron proton-antiproton collider with a centre-of-mass energy of 1.96 TeV has measured the top quark in various channels. We present the most recent measurements of the top quark mass in the dilepton and lepton+jets channels with up to 5.3 fb-1 as ... More Presented by Dr. Oleg BRANDT on 5 Jul 2012 at 14:15 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics A measurement of the difference between the masses of top and anti-top quarks is presented using data collected by the CMS experiment during the year 2011, in proton-proton collisions at the LHC at a centre-of-mass energy of 7 TeV. Events from the l+jets channel are selected by requiring one lepton and at least four jets in the final state. The measured value is compared with the prediction from t ... More Presented by Mr. Gerrit VAN ONSEM on 5 Jul 2012 at 12:30 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics We present a measurement of the electric charge of the top quark and an improved determination of the total width of the top quark, Gamma_t, using 5.3 fb-1 of integrated luminosity collected by the D0 Collaboration at the Tevatron ppbar Collider. The top quark charge is reconstructed from the top quark decay products in events which have an isolated high-pT charged lepton, large missing transverse ... More Presented by Prof. Christian SCHWANENBERGER on 5 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy The determination of the CP-violating phase φs in B0s -> J/ψ φ decays is one of the key goals of the LHCb experiment. Its value is predicted to be very small in the Standard Model but can be significantly enhanced in many models of new physics. We present the world's best measurement of φs and the first observation of a non-zero ΔΓs based upon 1.0 fb–1 of data collected at LHCb during 2011 ... More Presented by Dr. Greig COWAN on 7 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy The LHCb experiment is a general purpose forward spectrometer operating at the Large Hadron Collider, optimized for the study of B and D hadrons. LHCb collected 1.0 fb-1 of integrated luminosity during 2011 data taking, collecting unprecedented large samples of B hadron decays to final states involving charmed hadrons. These decays offer many complementary measurements of CP violation, in particul ... More Presented by Dr. Andrew Stephen POWELL on 7 Jul 2012 at 17:00 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy Measurements of CP violation in charm meson decays are presented using the complete 10/fb dataset collected by the CDF experiment at the Tevatron. The difference between CP-violating asymmetries in D0-->K+K- and D0-->pi+pi- decays is observed to be 2.8 sigma different form zero, supporting evidence of CP violation in charm reported by other experiments. In addition, world's most precise measuremen ... More Presented by Mr. Diego TONELLI on 5 Jul 2012 at 16:30 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy Direct and mixing-induced CP violation observables in charmless charged two-body B decays may provide valuable information in the quest for physics beyond the Standard Model. Owing to the large beauty production cross-section at the LHC and to the unique characteristics of the LHCb detector and trigger, unprecedented samples of such decays are becoming available. We present updated measurements of ... More Presented by Dr. Paul SOLER JERMYN on 7 Jul 2012 at 17:30 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology The Pierre Auger Observatory is a cosmic ray detector optimized for the detection of air showers (particle cascades in the atmosphere) created by particles with energies ranging from 10^17 eV to about 10^20 eV. The Pierre Auger Observatory is a hybrid detector. It uses a ground array of water Cherenkov tanks (deployed over an area of 3000 square kilometers), and a set of fluorescence telescopes ov ... More Presented by Dr. Jose BELLIDO on 7 Jul 2012 at 14:00 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions Jet quenching in the hot and dense medium created in ultra-relativistic heavy ion collisions is a well-established experimental phenomenon at RHIC. It has long been anticipated that the LHC heavy ion program would substantially advance the study of jet quenching by providing access to highly energetic jets and by measuring fully-reconstructed jets. Immediately following turn-on of the LHC in Novem ... More Presented by Prof. Erez ETZION on 5 Jul 2012 at 09:15 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches We study WW and WZ production with l nu q q (l=e,mu) final states using data collected by the D0 detector at the Fermilab Tevatron Collider corresponding to 4.3 fb-1 of integrated luminosity from ppbar collisions at sqrt(s)=1.96 TeV. Assuming the ratio between the production cross sections sigma(WW) and sigma(WZ) as predicted by the standard model, we measure the total WV (V=W,Z) cross section to ... More Presented by Mr. Gregorio BERNARDI on 6 Jul 2012 at 12:15 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions The polarizations of the Upsilon(1S), Upsilon(2S) and Upsilon(3S) mesons produced in proton-proton collisions at = 7 TeV are measured using a data sample collected with the CMS detector at the LHC, corresponding to an integrated luminosity of around 5 fb^{-1}. The measurements are based on the analysis of the dimuon decay angular distributions, analyzed in three different polarization frames, ... More Presented by Mr. Valentin KNüNZ on 7 Jul 2012 at 14:45 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 5 - B-Physics Precision measurements of b-hadron lifetimes are a key goal of the LHCb experiment. In the B0s sector, the measurement of the effective lifetimes for B0s mesons decaying to CP-odd, CP-even and flavour specific final states are essential for constraining the B0s mixing parameters, ΔΓs, the average width Γs and the CP-violating phase, φs. We present measurements of the effective lifetimes of B0s ... More Presented by Dr. Anna PHAN on 7 Jul 2012 at 14:00 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions We present two sets of measurements based on data collected with the D0 detector at the Fermilab Tevatron collider running at sqrt(s)=1.96 TeV. First we present a comprehensive study of the differential cross sections for the production of W bosons in association with up to four hadronic jets. Results are compared with the latest NLO and resummation theoretical predictions as well as with models i ... More Presented by Prof. Michael STRAUSS on 5 Jul 2012 at 11:00 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 5 - B-Physics We present measurements of the flavor-specific semileptonic asymmetry for B0d and B0s mesons using the full Run II data sample collected with the D0 detector at the Fermilab Tevatron collider. Three different decay channels are analysed: B0-->mu+D+X, with D-->Kpipi, B0-->mu+D*+X with D*-->D0pi, D0-->Kpi, and B0s-->Ds+mu+X, with Ds-->phipi, phi-->KK. We extract the charge asymmetries as a functi ... More Presented by Dr. Iain BERTRAM on 7 Jul 2012 at 15:30 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics We present the result of measurements of single top - quark production in the t - and Wt - channels at 7 TeV proton - proton collisions with the ATL AS detector at the Large Hadron Collider. Information on the CKM matrix element |Vtb| is extracted from these measurements. Presented by Mr. Philipp STURM on 5 Jul 2012 at 11:15 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics We present measurements of production cross sections of single top quarks in ppbar collisions at sqrt(s) = 1.96 TeV using data collected with the CDF and D0 experiments with integrated luminosities of up to 9.7 fb-1. Measurements of the total production cross section and of the t-channel cross section are presented, as well as searches for the s-channel production process. These measurements are a ... More Presented by Dr. Yvonne PETERS on 5 Jul 2012 at 11:45 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions We present two measurements of cross sections using the data recorded at the Fermilab Tevatron collider with the forward proton spectrometer(s) of the D0 detector. First we discuss a measurement of the differential distribution dsigma/dt for the elastic cross section in the range 0.26<|t|<1.2 GeV^2. Next we discuss a measurement of the differential cross section for the single diffractive process ... More Presented by Prof. Vladislav SIMAK on 6 Jul 2012 at 11:30 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics We present measurements of the inclusive top quark pair production cross section in various final states including electrons, muons, tau leptons, large missing transverse energy, b-tagged and light flavor jets. We also show measurements of differential distributions of top quarks produced in pairs which provides a unique test of the dynamics of a heavy diquark system at large scales and represents ... More Presented by Prof. Christian SCHWANENBERGER on 5 Jul 2012 at 11:00 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP The CMS Beam Conditions and Radiation Monitoring system (BRM) is installed to protect the CMS detector from high beam losses and to provide feedback to the LHC and CMS on the beam conditions. The Fast Beam Condition Monitor (BCM1F), one of the sub-detectors in the BRM system, is installed inside the pixel volume close to the beam pipe and consists of two planes of 4 modules each located 1.8 m away ... More Presented by Mr. Nathaniel Jay ODELL on 6 Jul 2012 at 10:15 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics The mass of the top quark is a fundamental parameter of the Standard Model. Measurements of the top quark mass are presented using data collected by the CMS experiment during the year 2011, in proton-proton collisions at the LHC at a centre-of-mass energy of 7 TeV. Different reconstruction methods to extract the top quark mass are employed. The results of the various channels are combined and comp ... More Presented by Dr. Hartmut STADIE on 5 Jul 2012 at 12:15 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions We report the results of several analyses based on the reconstruction of electroweak gauge bosons at LHCb. The forward coverage of the LHCb detector provides unique sensitivity to various different observables that can be used to test the Standard Model predictions. The results include those on W and Z production, Z production with associated jets, and low-mass Drell-Yan production. Presented by Dr. Jonathan ANDERSON on 5 Jul 2012 at 11:30 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions We present measurements of the differential cross sections for the production of photon pairs and for the production of b-jets in association with photons in ppbar collisions at sqrt(s)=1.96 TeV using data recorded with the D0 detector at the Fermilab Tevatron collider and corresponding to an integrated luminosity of 8.7 fb-1. Results are compared with the prediction of NLO QCD calculations and wi ... More Presented by Dr. Peter SVOISKY on 6 Jul 2012 at 14:45 Type: Poster Sessions Session: Poster Session Track: Track 13. Detectors and Computing for HEP Many physics analyses with the ATLAS detector expect to have jets originating from b-quarks in the final state. Algorithms that allow to identify such jets are thus of great importance and it is crucial to study their performance directly in data by measuring the tagging efficiencies and fake rates. Since the top quark almost exclusively decays to a W boson and a b-quark, a sample of top quark ... More Presented by Ms. Agnieszka LEYKO on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology The DAMA, CoGeNT and CRESST-II experiments have announced evidence for the direct detection of dark matter. We discuss these results in the context of the mirror dark matter framework. We show that all three experiments can be simultaneously explained via kinetic mixing induced elastic scattering of a mirror metal component off target nuclei. This metal component can be as heavy as Fe$'$if the ... More Presented by Dr. Robert FOOT on 7 Jul 2012 at 11:00 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy While CP violation in the B-meson system has been well established by the B factories, there has been no direct observation of time-reversal violation in this system. Using 468 million B-Bbar pairs collected by the BABAR detector at SLAC, we measure T-violating parameters in the time evolution of neutral-B mesons by comparing the probabilities of B0 or anti-B0 transforming into definite CP final s ... More Presented by Dr. Riccardo DE SANGRO on 7 Jul 2012 at 14:30 Type: Poster Sessions Session: Poster Session Track: Track 3 - BSM - Non-SUSY Exotics We describe a model independent search for physics beyond the standard model in lepton final states. We examine 117 final states using 1.1 fb-1 of ppbar collisions data at sqrt(s) = 1.96 TeV collected with the D0 detector. We conclude that all observed discrepancies between data and model can be attributed to uncertainties in the standard model background modeling, and hence we do not see any evid ... More Presented by Dr. James KRAUS, James Alexander KRAUS on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos Quasielastic neutrino-nucleon scattering is a basic signal process for neutrino oscillation studies. At accelerator energies, the corresponding cross section is subject to significant uncertainty due to the poorly constrained axial-vector form factor of the nucleon. A model-independent description of the axial-vector form factor is presented. Data from the MiniBooNE experiment for quasielastic neu ... More Presented by Prof. Richard HILL on 5 Jul 2012 at 14:15 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions We show how the AGBS model, originally developed for deep inelastic scattering applied to HERA data on the proton structure function, can also describe the RHIC data on single inclusive hadron yield for$d+Au$and$p+p$collisions through a new simultaneous fit. The single inclusive hadron production is modeled through the color glass condensate, which uses the quark(and gluon)--condensate amplit ... More Presented by Prof. M. Beatriz GAY DUCATI on 4 Jul 2012 at 09:45 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions LHC is now entering a precision era. No striking signals of new phenomena have yet been found, and the searches now have to focus on very small deviations from the Standard Model. This requires an unprecedented precision in our understanding of the Standard Model. Even though the experiments are extremely ingenious in finding model-independent ways of determining the background, this is not always ... More Presented by Prof. Leif Ingvar LöNNBLAD on 5 Jul 2012 at 16:00 Type: Poster Sessions Session: Poster Session Track: Track 13. Detectors and Computing for HEP In the high luminosity LHC scenario (HL-LHC) with a luminosity up to ten times higher than at LHC and running at 14 TeV centre-of-mass energy, it will be important to rely on a more accurate transverse momentum resolution in order to keep the trigger rate under control and reach low pT thresholds. In order to improve the transverse momentum resolution the idea is to combine the high precision trac ... More Presented by Dr. Oliver POOTH on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions The prediction of backgrounds to new physics signals in topologies with large missing transverse energy and jets is important to new physics searches at the LHC. The BlackHat collaboration has investigated theoretical issues in extrapolating backgrounds from experimental control regions to signal regions. For example, we compute, ratios of gamma + n-jet to Z + n-jet production rates and kinemat ... More Presented by Prof. Lance DIXON on 5 Jul 2012 at 17:15 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions Calculations to next-to-leading order in QCD of Standard-Model processes provide the leading quantitatively reliable predictions. They are a prerequisite for comparisons to experimental data. The BlackHat collaboration has been pushing the high-multiplicity frontier in such calculations. In this talk, representing the BlackHat collaboration, I present the next-to-leading predictions for W and Z ... More Presented by Dr. David KOSOWER on 5 Jul 2012 at 16:15 Type: Poster Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments High-precision electroweak experiments such as parity-violating Møller scattering can provide indirect access to physics at multi-TeV scales and play an important complementary role to the LHC research program. However, before physics of interest can be extracted from experimental data, electroweak radiative corrections, which can significantly reduce the cross-section asymmetry, must be calculat ... More Presented by Dr. Svetlana BARKANOVA on 5 Jul 2012 at 12:15 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY We present the analysis of the signature jj+missing-ET(+X) via squark-squark production and direct decay into the lightest neutralino in next-to-leading order QCD within the framework of the minimal supersymmetric Standard Model. We provide a consistent, fully differential calculation of NLO QCD factorizable corrections to the given processes with on-shell squarks. Clustering final states into pa ... More Presented by Mr. Davide PAGANI on 4 Jul 2012 at 09:00 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches I present new results for W-boson production at large transverse momentum at the LHC and the Tevatron. The contribution of soft-gluon corrections is derived from NNLL resummation and added to the exact NLO result. Numerical results for the approximate NNLO W-boson transverse momentum distributions are derived. The scale and PDF uncertainties are discussed. Presented by Prof. Nikolaos KIDONAKIS on 5 Jul 2012 at 16:00 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics We present new results for the matching coefficient between the QCD and the non-relativistic QCD (NRQCD) vector current. The matching coefficient constitutes one of the missing ingredients for a complete NNNLO theory prediction of top-quark pair production at a future linear collider. Furthermore, the matching coefficient is an important building block for the analysis of heavy quarkonia, which wi ... More Presented by Dr. Peter MARQUARD on 5 Jul 2012 at 10:15 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 2 - Beyond the Standard Model - SUSY The non-observation of signals for supersymmetry in the LHC data appears to have led to questions about the viability of supersymmetry in nature. We delineate clear criteria for SUSY models which stabilize the electroweak scale, and show that these models are not in conflict the non-appearance of SUSY in the 2011 LHC data. Finally, we discuss some phenomenological implications of these Natural SUS ... More Presented by Prof. Xerxes TATA on 5 Jul 2012 at 09:00 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments We propose to describe nuclei as near BPS solitons emerging from a generalization of the Skyrme model in the regime where a sixth-order term and a generalized mass term dominate. The mass term is chosen such that the baryon and energy density generated by the solutions do not exhibit the usual shell configuration. Adding contributions from the rotational energy, Coulomb energy and isospin symmetr ... More Presented by Prof. Luc MARLEAU on 5 Jul 2012 at 11:30 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos MINERvA (Main INjector Experiment for v-A) is a neutrino scattering experiment, employing a fine-grained detector with an eight ton active target region, located in the NuMI high-intensity neutrino beam at the Fermi National Accelerator Laboratory. MINERvA was designed to make precision measurements of low energy neutrino and antinuetrino cross sections on a variety of different materials (plastic ... More Presented by Mr. Rick SNIDER on 5 Jul 2012 at 12:30 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 8. Neutrinos Borexino is a large-volume liquid scintillator detector installed in the underground halls of the Laboratori Nazionali del Gran Sasso in Italy. After several years of construction, the Borexino phase I ended after about 3 years of data taking and a period of purification of the scintillator. All Borexino results within its solar neutrino program and their physical implications will be reviewed ... More Presented by Dr. Livia LUDHOVA on 6 Jul 2012 at 10:00 Type: Plenary Sessions Session: Neutrinos Track: Plenary Sessions Presented by Prof. Concepcion GONZALEZ-GARCIA on 11 Jul 2012 at 10:00 Type: Plenary Sessions Session: Cosmology / Theory Developments Track: Plenary Sessions Presented by Prof. LANCE DIXON on 11 Jul 2012 at 12:20 Type: Plenary Sessions Session: Flavour Physics Track: Plenary Sessions Presented by Prof. Sheldon STONE on 9 Jul 2012 at 16:10 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions The study of gluon radiation in QCD, in the limit of small ("soft") momentum, remains an active research area, with a variety of phenomenological and theoretical applications. Soft gluon emission leads to large logarithms in perturbation theory which have to be summed up to all orders in the coupling, and also governs the structure of infrared singularities. Recently, new techniques and mathematic ... More Presented by Dr. Chris WHITE on 7 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions The TOTEM experiment recently measured the elastic proton rates dN/dt down to –t=0.02 GeV^2 at the LHC energy of \sqrt s = 7 TeV. In addition, the accompanying inelastic rates were recorded with the forward telescopes for 5.3 < |eta| < 6.4. The optical theorem allowed for first luminosity independent total cross-section measurement at \sqrt s = 7 TeV energy. Moreover, the total pp cross-section ... More Presented by Dr. Hubert NIEWIADOMSKI on 6 Jul 2012 at 12:15 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos The OPERA neutrino experiment is placed in the CERN Neutrino beam to Gran Sasso (CNGS), 730 km from the beam source at CERN, in the underground Gran Sasso Laboratory. With the aim to measure the neutrino velocity on this baseline with higher accuracy than previous studies using accelerator neutrinos, dedicated upgrades of the CNGS timing system and of the OPERA detector were undertaken, as well ... More Presented by Prof. Maximiliano SIOLI on 5 Jul 2012 at 15:00 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions We report on recent results obtained for the 3-loop heavy flavor Wilson coefficients in deep-inelastic scattering at general values of the Mellin variable N at large scales of Q^2. These concern contributions to the gluonic ladder-topologies, the transition matrix elements in the variable flavor scheme, and first results on higher topologies. The knowledge of the heavy flavor Wilson coefficients i ... More Presented by Dr. Abilio DE FREITAS on 5 Jul 2012 at 10:00 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY The "razor" at the LHC refers to a set of kinematical variables used to discriminate heavy new physics against standard model processes. The empirical modeling of the variables and their correlation leads to good sensitivity to new physics. In this talk we present some of the latest results obtained with the razor technique in CMS, ranging from SUSY to more exotic searches. Presented by Dr. Will REECE on 5 Jul 2012 at 12:30 Type: Poster Sessions Session: Poster Session Track: Track 13. Detectors and Computing for HEP The proton-proton collision events recorded by the ATLAS experiment are on top of a background that is due to both collision debris and non-collision components. The latter comprises of three types: beam-induced backgrounds, cosmic particles and detector noise. We present studies that focus on the first two of these. We give a detailed description of beam-related and cosmic backgrounds based on th ... More Presented by Dr. Stephen GIBSON on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy Precision measurement of the ultra-rare$K^+\to\pi^+\nu \bar\nu$decay at Fermilab would be one of the most incisive probes of quark flavor physics this decade. Its dramatic reach for uncovering new physics is due to several important factors: The branching ratio is sensitive to most new physics models which extend the Standard Model to solve its considerable problems. The Standard Model predict ... More Presented by Prof. Mike HILDRETH on 6 Jul 2012 at 16:30 Type: Plenary Sessions Session: Opening Ceremony / LHC Higgs Search Updates Track: Plenary Sessions on 8 Jul 2012 at 09:00 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches If the Higgs boson does not show up soon, we should look for alternative mechanisms of mass generation, satisfying the many experimental constraints which the Standard Model (SM) has successfully fulfilled so far. Following this aim, we present a one-loop calculation of the oblique S parameter within Higgsless models of Electroweak Symmetry Breaking (EWSB) and analyze the phenomenological implicat ... More Presented by Dr. Ignasi ROSELL on 5 Jul 2012 at 09:15 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY Very precise measurements of masses and cross sections are expected to be achievable with a future linear collider. With such an accuracy one is even sensitive to quantum correction, which therefore must be incorporated in order to make meaningful predictions for the underlying new physics parameters. For the chargino--neutralino sector, this involves fitting one-loop predictions to expected measu ... More Presented by Dr. Aoife BHARUCHA on 5 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions Studies of quarkonia production in the forward region provide important tests of perturbative QCD. We present studies of the production of charmonia and bottomonia in the LHCb detector, using data from proton-proton collisions at a range of centre-of-mass energies. The results are compared to recent theoretical predictions. Absolute and relative production cross-sections are presented for both S ... More Presented by Prof. Valerie GIBSON on 7 Jul 2012 at 14:30 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 9. Heavy Ion Collisions The exploration of the QCD phase diagram particularly the search for a phase transition from hadronic to partonic degrees of freedom and possibly a critical endpoint, is one of the most challenging tasks in present heavy-ion physics. As observed by the NA49 experiment, several hadronic observables in central Pb+Pb collisions at the CERN SPS show qualitative changes in their energy dependence. Thes ... More Presented by Maciej RYBCZYNSKI on 5 Jul 2012 at 17:30 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP The CMS silicon tracker is the largest silicon detector ever built. It consists of a hybrid pixel detector with 66 million channels and a 200 m2 silicon strip detector with 10 million read out channels. The presentation describes the operation of this detector during the first three year of LHC both during proton-proton as well as heavy ion collisions. Results on the operational performance are pr ... More Presented by Dr. Erik BUTZ on 5 Jul 2012 at 09:15 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP The Drift Tubes (DT) detector in the CMS experiment triggered and recorded high quality data during the LHC run in 2011, observing muons from pp collisions at a center of mass energy of 7 TeV. More than 99% of the detector channels participated in data taking with very good performances in terms of up-time and efficiency. Prompt data were monitored in order to evaluate noise and backgrounds and to ... More Presented by Dr. Gabriella PUGLIESE on 6 Jul 2012 at 11:00 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 15. Education and Outreach Support for "big science" must come from a society that is scientifically literate. We get few chances to develop scientific literacy for students who do not study science formally in university or college. QuarkNet provides activities in which high school students work with particle physics data and do scientific investigations. Evaluation data show that participants broaden their frame of refere ... More Presented by Ms. Marjorie BARDEEN on 6 Jul 2012 at 09:30 Type: Poster Sessions Session: Poster Session Track: Track 8. Neutrinos We present an optimization of the neutrino beam which could be produced at CERN and aimed to the newly proposed deep-underground neutrino observatory LAGUNA-LBNO located at distance of about 2300 km (Phyasalmi mine, Finland). Specific scenarios for the proton driver and the far detectors have been investigated. In particular, the flux predictions have been obtained by means of a full GEANT4 simula ... More Presented by Dr. Silvestro DI LUISE on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics Other properties of top quarks as measured with the ATLAS detector, using pp collisions at a center-of-mass energy of 7 TeV, are presented. In particular the charge of the quark is determined to be +2/3 as predicted by the Standard Model, while an exotic charge is excluded. The cross-section of additional photon radiation in top quark pairs is also measured and presented in this talk. Presented by Dr. Antonio LIMOSANI on 5 Jul 2012 at 16:45 Type: Parallel Sessions Session: TR4 - Top Quark Physics Track: Track 4 - Top Quark Physics Measurement of top quark properties, such as the top quark charge and the flavour contents in top quark pair events is presented using proton-proton collision data recorded with the CMS Experiment at the LHC at a centre-of-mass energy of 7 TeV. For the measurement of the top quark charge, the top quark pair events are reconstructed in the muon+jets final state and different top quark charge hypoth ... More Presented by Ms. Yvonne KüSSEL on 5 Jul 2012 at 17:00 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP The upgrades for the ATLAS Pixel Detector will be staged in preparation for high luminosity LHC. The first upgrade for the Pixel Detector will be the construction of a new pixel layer which will be installed during the first shutdown of the LHC machine, foreseen in 2013-14. The new detector, called the Insertable B-layer (IBL), will be installed between the existing Pixel Detector and a new, smal ... More Presented by Dr. Mario GIORDANI on 6 Jul 2012 at 16:50 Type: Plenary Sessions Session: QCD Track: Plenary Sessions Presented by Dr. Alexander GLAZOV on 9 Jul 2012 at 09:30 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology The similarity of the visible and the dark matter relic abundances suggests related production mechanisms. This is possible if the dark matter density is -analogously to the visible matter- due to an asymmetry in a dark particle number which is conserved at low energies. In pangenesis, the visible and dark asymmetries are produced jointly via Affleck-Dine dynamics, and they compensate each other u ... More Presented by Dr. Kalliopi PETRAKI on 6 Jul 2012 at 09:00 Type: Poster Sessions Session: Poster Session Track: Track 8. Neutrinos The Standard Model includes neutrinos as massless particles, but neutrino oscillations showed, that neutrinos are not massless. A simple extension of adding gauge singlet fermions to the particle spectrum allows normal Yukawa mass terms for neutrinos. Then smallness of the neutrino masses can be well understood within the seesaw mechanism (type I). After spontaneous symmetry breaking of the Standa ... More Presented by Dr. Darius JURCIUKONIS on 7 Jul 2012 at 18:00 Type: Poster Sessions Session: Poster Session Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy The parity of pions will be discussed within the framework of the Generation Model [1] of particle physics and it will be shown that both the 1954 determination [2] of the parity of the charged pions and the 2008 determination [3] of the parity of the neutral pion are compatible with the mixed-parity nature of the pions predicted by a recent composite Generation Model [4]. The development of the G ... More Presented by Dr. Brian ROBSON on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions Scaled momentum distributions for the strange hadrons K0s and Lambda/Lambdabar were measured in deep inelastic ep scattering with the ZEUS detector at HERA using an integrated luminosity of 330 pb-1. The evolution of these distributions with the photon virtuality, Q2, was studied in the kinematic region 10 < Q2 < 40000 GeV2 and 0.001 < x < 0.75, where x is the Bjorken scaling variable. Clear scali ... More Presented by Dr. Anastasia GREBENYUK on 5 Jul 2012 at 15:00 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions The ALICE experiment can benefit from its excellent particle identification capabilities to study hadron production in Pb-Pb collisions at \sqrt(s_NN) = 2.76 TeV, over a wide range of momenta. This allows one to probe different stages of the medium evolution. Transverse momentum spectra of identified particle and resonances characterize the bulk freeze-out properties and the dynamical evolution of ... More Presented by Ms. Francesca BELLINI on 6 Jul 2012 at 11:30 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions The Large Hadron electron Collider (LHeC) is a proposed facility which will exploit the new world of energy and intensity offered by the LHC through collisions with a new 60 GeV electron beam. This contribution summarises the detailed simulation studies on QCD-related topics included in the recently released Conceptual Design Report. Highlights include a new level of precision and flavour decompos ... More Presented by Prof. Claudia GLASMAN on 5 Jul 2012 at 10:15 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP The hadron calorimeters of the CMS experiment have successfully recorded data at 7 TeV and 8 TeV center-of-mass energy during 2011 and 2012 LHC operation. The performance of all systems (barrel, end-cap, forward and the outer calorimeters) are discussed and results from the full 2011 dataset are shown on noise rejection, calibration, collision timing, and identification of jet candidates and for ... More Presented by Dr. Sudarshan PARAMESVARAN on 6 Jul 2012 at 17:35 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP After the analysis of the 2010 proton proton collision data provided by LHC, the ATLAS experiment has achieved an accuracy of the jet energy measurement between 2-4% for jet transverse momenta from 20 GeV to about 2 TeV in the pseudo-rapidity range up to |eta|=4.5. The jet energy scale uncertainty is derived from in-situ single hadron response measurements along with systematic variations in the M ... More Presented by Prof. Ariel Gustavo SCHWARTZMAN on 6 Jul 2012 at 12:15 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP A summary of the measurements of the jet energy calibration in CMS is presented, performed with data samples collected in proton-proton collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 1.6/fb. The final jet energy calibration is based on dijet, γ+jet and Z+jet events. The results are presented for the "Particle Flow" approach, which attempts to reconstru ... More Presented by Mr. Joram BERGER on 6 Jul 2012 at 12:00 Type: Poster Sessions Session: Poster Session Track: Track 13. Detectors and Computing for HEP The ATLAS Transition Radiation Tracker (TRT) is an integral subsystem for precision tracking at ATLAS. In addition, transition radiation signatures allow for particle identification capabilities. Monitoring the performance of the TRT helps establish the necessary foundation for understanding higher level tracking reconstruction and particle identification. We present our current studies on how the ... More Presented by Mr. Kevin Daniel FINELLI on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 13. Detectors and Computing for HEP The CALICE collaboration has developed highly granular calorimeter prototypes to evaluate technologies for experiments at a future lepton collider, and measured their performance in test beams. One important use of these data is the validation of the physics models in GEANT4, especially those related to hadronic showers. This validation is crucial if Monte Carlo simulations are to be used to opt ... More Presented by Dr. Tamaki YOSHIOKA on 7 Jul 2012 at 17:30 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP The first level trigger of the CMS experiment is comprised of custom electronics that process data from the calorimeters and muon detectors in order to select the most interesting events from LHC collisions. The rate of events selected by this Level-1 trigger must be reduced from the beam crossing frequency to no more than 100 kHz before detector digitization and High Level Trigger processing can ... More Presented by Dr. Jim BROOKE on 6 Jul 2012 at 14:00 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP The Electromagnetic Calorimeter (ECAL) of the Compact Muon Solenoid (CMS) experiment at the LHC is a hermetic, fine grained, homogeneous calorimeter, comprising 75,848 lead tungstate (PbWO4) scintillating crystals, located inside the CMS superconducting solenoidal magnet. The scintillation light is detected by avalanche photodiodes (APDs) in the barrel section and by vacuum phototriodes (VPTs) in ... More Presented by Dr. Riccardo PARAMATTI on 5 Jul 2012 at 09:45 Session: QCD Track: Plenary Sessions Presented by Dr. John CAMPBELL on 10 Jul 2012 at 10:30 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions Prompt isolated photon pairs production cross sections, as well as direct photon production in association with a heavy (b or c) quark jets are presented. Differential cross sections are presented as a function of several variables. The results are compared with a next-to-leading order perturbative QCD calculations. Presented by Konstantinos VELLIDIS on 6 Jul 2012 at 14:30 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 13. Detectors and Computing for HEP The Compact Linear Collider CLIC with e+e- collisions up to 3 TeV in energy is designed to precisely explore New Physics at the TeV scale as well as Standard Model Physics such as the Higgs Mechanism. It will be capable of precisely measuring the masses and couplings of new particles, the mass, decay branching ratios and the self-coupling of the Higgs Boson as well as the parameters of the top qua ... More Presented by Dr. Frank SIMON on 7 Jul 2012 at 17:10 Type: Poster Sessions Session: Poster Session Track: Track 13. Detectors and Computing for HEP The very forward region at a future e+e- collider detector will be instrumented with calorimeters dedicated primarily for precise measurement of the integral luminosity, providing at the same time information for beam-tuning, shielding of the inner detectors and also improving the overall detector hermeticity. Detector designs optimized for the ILC and CLIC colliders are presented, with emphasis o ... More Presented by Dr. Ivanka BOZOVIC-JELISAVCIC on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 5 - B-Physics The B factories — the Belle detector at the KEKB collider in KEK and the BaBar detector at the PEP II in SLAC — have, in more than a decade of data taking, outreached the initial expectations on the physics results. They pointed out few hints of discrepancies between the Standard Model (SM) predictions and the results of the measurements. To experimentally verify the current hints of possible ... More Presented by Prof. Mikhail DANILOV on 6 Jul 2012 at 17:45 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches The mass of the W boson is sensitive to radiative corrections from the top quark and the Higgs boson. We present a new measurement of mW using 2.2/fb of sqrt(s)=1.96 TeV ppbar collision data collected with the CDF II detector. Utilizing 470126 W → eν candidates and 624708 W → μν candidates, we measure mW = 80387±19 MeV. This is the most precise measurement of mW, more precise than all prev ... More Presented by Prof. Ashutosh KOTWAL on 5 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 14. Future Accelerators Beam polarisation is an important ingredient of the physics progam of future Electron Positron Linear Colliders. In order to fully exploit the benefits of the polarised beams, the luminosity weighted average polarisation needs to be known to 0.25% or even 0.1% at the ILC, while a few percent seem achievable at CLIC. We will present the polarimetry concept for the Beam Delivery Systems of both mac ... More Presented by Dr. Jenny LIST on 6 Jul 2012 at 09:45 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 10. Lattice QCD Indirect CP violation in K -> pipi decays plays a central role in constraining the flavor structure of the Standard Model and in the search for new physics. For many years the leading uncertainty in the SM prediction of this phenomenon was the one associated with the nonperturbative strong interaction dynamics in this process. I will present a fully nonperturbative lattice QCD calculation of the ... More Presented by Dr. Thorsten KURTH on 6 Jul 2012 at 09:30 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches SuperB has a programme of precision electroweak measurements made possible using data at the Y(4S) by virtue of beam polarisation. These measurements include sin^2 theta_W obtained via left-right asymmetry measurements of e+e- transitions to pairs of fermions. The precision obtainable at SuperB is expected to match that of the LEP/SLC world average at the center of mass energy of 10.58GeV. On ... More Presented by Prof. Michael RONEY on 5 Jul 2012 at 09:00 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP The ATLAS muon spectrometer performs to the specs of efficiency, occupancy and spatial resolution at present LHC peak-luminosities of$4 \times 10^{33}\frac{1}{cm^2~s}$. Ten times higher peak-luminosities are envisaged after the LHC upgrade by end of this decade. Currently used tracking detectors in the most forward part of the muon spectrometer need to be replaced to cope with the expected h ... More Presented by Dr. Ralf HERTENBERGER on 6 Jul 2012 at 17:20 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions Next-to-leading order predictions in perturbative QCD are presented of various differential distributions for$p p \rightarrow Wb\bar{b} X \to \ell \nu b \bar{b} X, and other processes at the CERN Large Hadron Collider. Included are the contributions from both single parton scattering and double parton scattering, as well as relevant backgrounds. Several kinematic variables are proposed for iso ... More Presented by Dr. Edmond BERGER Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 11. Particle Astrophysics and Cosmology The determination of neutrino flavor transition mechanisms by neutrino telescopes is discussed. We parametrize these mechanisms in a basis which is very convenient for classifying flavor transition models.At very high energies (>10PeV), It is investigated that the electron neutrino fraction can be extracted without identifying muon and tau neutrinos by the neutrino telescope, such as ARA. We demon ... More Presented by Prof. Kwang-Chang LAI on 6 Jul 2012 at 16:30 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions We present new results on the measurements of properties of heavy hadron production and decay at CDF. These include the first three-dimensional determination of the Upsilon meson spin alignment, the first measurement of the Bc meson lifetime in an exclusive final state, and a study of the phenomenology of charged charmed meson fragmentation. Presented by Dr. Sinead FARRINGTON on 6 Jul 2012 at 16:00 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions The production of Quarkonia states at hadron colliders has been the subject of various theoretical approaches, which can now be compared to measurement performed at LHC. In the Charmonium family, the production of J/Psi has been studied over wide range of pT. In the Bottomonium family, the production of Y(1S) has been studied by ATLAS. The recent first observation of resonances decaying to Y(1S ... More Presented by Dr. James William WALDER on 7 Jul 2012 at 15:00 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 3 - BSM - Non-SUSY Exotics We calculate the Drell-Yan production cross sections and differential distributions in the transverse momentum and rapidity of theJ^{PC}=1^{--}$exotic hadrons$\phi(2170)$,$X(4260)$and$Y_b(10890)$at the hadron colliders LHC and the Tevatron. These hadrons are tetraquark (four-quark) candidates, with a hidden$s\bar{s}$,$c\bar{c}$and$b\bar{b}$quark pair, respectively. In deriving the di ... More Presented by Prof. Ahmed ALI on 6 Jul 2012 at 17:30 Type: Poster Sessions Session: Poster Session Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches In this work we study the production cross section of the heaviest charged Higgs bosons (H_2^±) predicted by the SU(3)_c X SU(3)_L X U(1)_x gauge model (3-3-1 model) without exotic charges. Taking into account intermediate vector bosons, including a new Z’ neutral boson predicted by the model, we calculate the cross section of H_2^± pair production in Drell-Yan processes at CERN-LHC hadron col ... More Presented by Dr. Fredy OCHOA on 7 Jul 2012 at 18:00 Session: Physics Highlights / Detectors & Computing Track: Plenary Sessions Presented by Dr. Ian FISK on 11 Jul 2012 at 14:30 Type: Plenary Sessions Session: Heavy Ions / Lattice QCD Track: Plenary Sessions Presented by Dr. James ZANOTTI on 10 Jul 2012 at 12:20 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 14. Future Accelerators Ionization Cooling is the only practical solution to preparing high brilliance muon beams for a neutrino factory or muon collider. The muon ionization cooling experiment (MICE) is under development at the Rutherford Appleton Laboratory (UK) by an international collaboration. The muon beam line has been commissioned and, for the first time, measurements of beam emittance with particle physics de ... More Presented by Prof. Kenneth LONG on 7 Jul 2012 at 12:00 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 14. Future Accelerators We discuss the possibility of the conception of a multi-purpose fixed-target experiment with the proton or lead ion LHC beams extracted by bent a crystal. This mature extraction technique offers an ideal way to obtain a clean and very collimated high-energy beam, without altering at all the performance of the LHC [1,2,3]. It has been successfully tested at SPS (450 GeV) and at the Tevatron (900 Ge ... More Presented by Dr. Jean-Philippe LANSBERG on 7 Jul 2012 at 10:30 Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches The Large Hadron electron Collider (LHeC) is a proposed facility which will collide an LHC proton beam with a new 60 GeV electron beam. This contribution summarises the LHeC prospects for Higgs physics, as documented in the recently released Conceptual Design Report. Assuming a light Higgs boson, the dominant b-bbar coupling can be measured and other Standard model properties of the decay can be t ... More Presented by Dr. Uta KLEIN on 7 Jul 2012 at 17:00 Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches A linear e+e- collider provides excellent possibilities for precision measurements of the properties of the Higgs boson. At energies close to the Z-Higgs threshold, the Higgs boson can be studied in recoil against a Z boson, to obtain not only a precision mass measurement but also direct measurements of the branching ratios for all important decay modes, including possible decay to invisible spec ... More Presented by Dr. Frank SIMON on 7 Jul 2012 at 16:45 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 11. Particle Astrophysics and Cosmology DarkSide represents a staged program for direct detection of dark matter utilizing two-phase argon time projection chamber with the goal of achieving a high sensitivity limit or convincing detection of dark matter. The first stage in the program is DarkSide-10, a 10 kg prototype detector that was running in Laboratori Nazionali del Gran Sasso Counting Test Facility (CTF) during summer of 2011. Th ... More Presented by Dr. Jelena MARICIC on 6 Jul 2012 at 17:45 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 8. Neutrinos Results from reactor neutrino experiments show a repeating pattern of a small constant deficit at baselines between 16 m and 1-2 km as described in the paper by Mention et al. Proposed explanation of the deficit is so called reactor neutrino anomaly that requires existence of a non-standard neutrino oscillation with a very short baseline. Convincing independent confirmation of this result can come ... More Presented by Dr. Jelena MARICIC on 6 Jul 2012 at 10:15 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy We study the prospects of measuring the CKM matrix element$\vert V_{ts}\vert$at the LHC with the top quarks produced in the processes$p p \to t\bar{t}X$and$p p \to t/\bar{t} X$, and the subsequent decays$t \to W^+s$and$\bar{t} \to W^- \bar{s}$. To reduce the jet activity in top quark decays, we insist on tagging the$W^\pm$leptonically,$W^\pm \to \ell^\pm \nu_\ell$($\ell =e, \mu, \tau$... More Presented by Prof. Fernando BARREIRO on 6 Jul 2012 at 13:45 on 6 Jul 2012 at 18:00 on 7 Jul 2012 at 12:00 Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions Track: Track 6. QCD, Jets, Parton Distributions Precise measurements of W and Z production, differential in pT and rapidity, are shown. These provide stringent tests of higher order QCD, resummed calculations and non-perturbative models. They are also used to extract information on the strange quark content of the proton. Presented by Dr. Maarten BOONEKAMP on 5 Jul 2012 at 12:15 Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3 Track: Track 12. Formal Theory Developments We show that, for all tachyon-free classical Minkowski vacua with four-dimensional spontaneously broken N=8 supergravity, the one-loop effective potential is calculable and finite. We also find that, in all presently known examples, it is negative-definite. Presented by Prof. Fabio ZWIRNER on 6 Jul 2012 at 09:00 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions The Compact Muon Solenoid (CMS) is fully equipped to measure hard probes in the di-muon decay channel in the high multiplicity environment of nucleus-nucleus collisions. Such probes are especially relevant for studying the quark-gluon plasma since they are produced at early times and propagate through the medium, mapping its evolution. CMS has measured the nuclear modification factors of non-promp ... More Presented by Dr. Nuno VIEGAS GUERREIRO LEONARDO on 6 Jul 2012 at 10:00 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions I will discuss the impact of QCD corrections on the P_T differential cross section for quarkonium production at RHIC [1], Tevatron and LHC energies [2], as well as the contributions from charm-gluon fusion [3]. I will discuss the promising agreement between the parameter-free predictions of the Colour-Singlet Model --up to alpha_s^5 in some cases-- and the first LHC data for J/psi and Upsilon (see ... More Presented by Dr. Jean-Philippe LANSBERG on 7 Jul 2012 at 15:15 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments We present our latest results concerning the radiation spectrum emitted by a relativistic charged particle at strong coupling, employing the theoretical techniques provided by the AdS/CFT correspondence. We compare with other recent analyses of this problem with heavy quarks [1,2], and in our case we do find deviations from the (classical) Lienard formula once we take into account all the relevant ... More Presented by Dr. Daniel FERNANDEZ-FRAILE on 5 Jul 2012 at 11:15 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP We have designed two ASICs for possible applications in the optical links of a new layer of the ATLAS pixel detector for the initial phase of the LHC luminosity upgrade. The ASICs include a high-speed driver for a VCSEL and a receiver/decoder to extract the data and clock from the signal received by a PIN diode. Both ASICs contain 12 channels for operation with a VCSEL or PIN array. Among these c ... More Presented by Prof. Kock Kiam GAN on 6 Jul 2012 at 17:50 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy Radiative B decays are sensitive probes of New Physics. We present the first results on these decays from the LHCb experiment, which are obtained with 1.0 fb-1 of proton-proton collision data collected in 2011. Results include the measurements of the branching fraction of B0s -> φ γ and the CP asymmetry in B0 -> K*0 γ. Presented by Dr. Olivier DESCHAMPS on 6 Jul 2012 at 14:30 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy Lepton-flavor violation in the standard model occurs only via neutrino mixing, and is thus suppressed by powers of (m_nu / m_W)^2 to far below observable levels. However, in many extensions of the standard model, lepton-flavor violation involving third-generation fermions may be highly enhanced. Study of B decays involving a tau lepton in the final state is complicated by the presence of final-sta ... More Presented by Dr. Steven ROBERTSON on 6 Jul 2012 at 16:45 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy The NA62 (phase-I) experiment at CERN collected a large sample of charged kaon decays in 2007-2008, allowing one to study these decays with a high precision. The first result of the helicity-suppressed ratio RK of the K+- --> e+- nu and K+- --> mu+- nu decay measurement based on this sample is presented. The result is in agreement with the Standard Model expectation, and constrains two-Higgs-doubl ... More Presented by Prof. Vladimir KEKELIDZE on 6 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 5 - B-Physics The quark transition$b \rightarrow s \nu\bar{\nu}$is only possible within the Standard Model (SM) through higher order processes, which are highly suppressed compared to tree-level processes. The theoretical predictions of the decays where this quark process occurs are very precise because there is only one hadron in the final state and no charged lepton. However, in models beyond the Standard M ... More Presented by Ms. Oksana BROVCHENKO on 6 Jul 2012 at 14:45 Type: Plenary Sessions Session: Neutrinos Track: Plenary Sessions Presented by Prof. Jun CAO on 10 Jul 2012 at 09:30 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos A precise knowledge of the neutrino cross sections at ~1 GeV on nuclear targets is required to determine the remaining neutrino oscillation parameters accurately. Until recently, our knowledge of neutrino interactions was based on measurements from 20-year old bubble chamber experiments on hydrogen and deuterium targets. As a result, the systematic uncertainties due to neutrino cross sections ar ... More Presented by Dr. Heather RAY on 5 Jul 2012 at 14:00 Type: Plenary Sessions Session: Heavy Ions / Lattice QCD Track: Plenary Sessions Presented by Prof. Johanna STACHEL on 10 Jul 2012 at 11:20 Type: Poster Sessions Session: Poster Session Track: Track 3 - BSM - Non-SUSY Exotics We present recent results of the search for baryon number violating phenomena predicted by GUTs in Super-Kamiokande covering nucleon decay and neutron-antineutron oscillation. Grand Unified Theories (GUTs) seek to unify the strong and electroweak forces, and a unique prediction of the GUTs is baryon number violation. Two quarks in a nucleon can transform into a lepton and an antiquark resulting ... More Presented by Dr. Jun KAMEDA on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions The NA61/SHINE (SPS Heavy Ion and Neutrino Experiment) is a fixed-target experiment to study hadron production in hadron-nucleus and nucleus-nucleus collisions at the CERN SPS. The experimental apparatus is a large acceptance Magnetic Spectrometer complemented with Time-Of-Flight detectors and a Projectile Spectator Detector. Its excellent capability for particle identification and momentu ... More Presented by Dr. Silvestro DI LUISE on 6 Jul 2012 at 12:45 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions The main focus of the HERMES experiment at DESY was the detailed investigation of the spin structure of the nucleon, mainly its decomposition into contributions from quarks and gluon spins and their orbital angular momenta. Many exciting, unexpected results have been obtained by measuring semi-inclusive and exclusive processes in deep-inelastic scattering. Over recent years, pioneering measuremen ... More Presented by Dr. Delia HASCH on 7 Jul 2012 at 16:00 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 8. Neutrinos The ANTARES collaboration completed in 2008 the construction of the largest neutrino telescope in the Northern hemisphere. Neutrinos, being neutral, stable and weakly-interacting have unique advantages with respect to other more traditional probes to study the high energy Universe. The scientific scope of ANTARES is very broad, including the observation of astrophysical neutrino sources, the indi ... More Presented by Dr. Juan de Dios ZORNOZA on 5 Jul 2012 at 09:00 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 8. Neutrinos Super-Kamiokande started its operation in 1996. Since then, more than 3000 days of atmospheric neutrino data has been collected. In the beginning, we have obtained \Delta_m^2_{23} and \theta_{23} with two flavor oscillation using the zenith angle distirbution of observed leptons. Afterwards, we have extracted L/E distribution from observed quantities to deduce the oscillation parameters. Continuou ... More Presented by Dr. Yoshinari HAYATO on 5 Jul 2012 at 09:15 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos In this talk, we investigate renomalization group running of neutrino parameters such as neutrino masses and leptonic parameters in different models. The models range from the inverse seesaw model to radiative versions of the scotogenic model as well as extra-dimensional models with both one and two extra spatial dimensions. We find that most models lead to large running for theta_12, whereas the ... More Presented by Prof. Tommy OHLSSON on 5 Jul 2012 at 17:45 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos KamLAND-Zen is an experiment for neutrino-less double-beta decay search with 136Xe. A newly constructed balloon was installed inside the current 13m diameter KamLAND balloon and filled with 136Xe loaded liquid scintillator in 2011. The data taking was started in October 2011 and the first physics results were obtained with an exposure of 77.6 days with 129 kg of 136Xe. We measured the two neutri ... More Presented by Dr. Satoru YAMADA on 5 Jul 2012 at 10:00 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos The Tokai to Kamioka (T2K) experiment is a long baseline neutrino oscillation experiment situated in Japan. A high intensity neutrino beam is produced at the Japan Proton Accelerator Research Complex, in Tokai, Japan. A near detector complex, situated 280 m from the neutrino production target, and the far detector at 295 km, are used to detect the neutrinos from this beam. This talk will prese ... More Presented by Dr. Ken SAKASHITA on 5 Jul 2012 at 11:45 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology The Telescope Array (TA) experiment is the largest experiment in the northern hemisphere studying ultra high energy cosmic rays (UHECRs). The Telescope Array is a hybrid detector consists of a surface detector (SD) array and air fluorescence detectors (FDs). This hybrid detector is observing extensive air showers to measure the energy spectrum, anisotropy and composition of ultra high energy cosmi ... More Presented by Dr. Hisao TOKUNO on 7 Jul 2012 at 14:30 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy We present the latest results on the search for excited bottom baryon states Lambda_b* in proton-antiproton collisions with a center of mass energy of 1.96 TeV. Using a 10/fb data sample, we study the Lambda_b* resonance states in the Lambda_b0 pi+ pi- decay mode in events collected by the CDF II detector with a displaced vertex trigger. Presented by Dr. Igor GORELOV on 5 Jul 2012 at 11:30 Type: Plenary Sessions Session: Physics Highlights / Detectors & Computing Track: Plenary Sessions Presented by Dr. Brian BOYLE Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology LUNA (Laboratory for Underground Nuclear Astrophysics) is devoted to measure nuclear cross sections relevant in astroparticle physics. The LUNA measurements are performed at the "Laboratori Nazionali del Gran Sasso" (LNGS), with the unique accelerator in the world operating underground. Here, the background induced by cosmic rays is orders of magnitude lower than outside. As a consequence, with th ... More Presented by Dr. Carlo GUSTAVINO on 7 Jul 2012 at 16:30 Presented by Prof. Raman SUNDRUM on 9 Jul 2012 at 15:20 Type: Plenary Sessions Session: EW Physics / SUSY Track: Plenary Sessions Presented by Prof. Andy PARKER on 9 Jul 2012 at 14:50 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 2 - Beyond the Standard Model - SUSY We will examine the capability of the 7/8 TeV LHC to explore the 19(20) dimensional parameter space of the pMSSM SUSY model following the ATLAS MET analysis suite. Allowing for either a neutralino or gravitino LSP and assuming all sparticle masses lie below 4 TeV, we demonstrate that the LHC searches can cover a large fraction of this space. The importance of non-MET searches, such as those for he ... More Presented by Dr. Thomas RIZZO on 6 Jul 2012 at 10:00 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY We present the latest results of the MasterCode collaboration on global SUSY fits. Currently available experimental data are used to determine the preferred SUSY and Higgs boson mass scales. The data comprise a combination of high-energy SUSY searches, low-energy precision measurements and astrophysical data. We include all relevant LHC searches for SUSY, electroweak precision observables such ... More Presented by Dr. Albert DE ROECK on 5 Jul 2012 at 14:30 Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY Track: Track 2 - Beyond the Standard Model - SUSY We re-evaluate prospects for Supersymmetry at a future Electron Positron Linear Collider in light of the first 5 fb^-1 of data taken at LHC with$\sqrt{s}=7$TeV proton proton collisions. Strong new limits from LHC SUSY searches, along with a hint of a Higgs boson signal around$m_h\sim 125$GeV, suggest a paradigm shift from previously popular models to ones with new and compelling signatures. We ... More Presented by Dr. Jenny LIST on 5 Jul 2012 at 16:30 Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3 Track: Track 3 - BSM - Non-SUSY Exotics Classical scale invariance maybe responsible for the quantum stability of the electroweak scale. We discuss realistic scale-invariant extensions of the Standard Model and the related phenomenology Presented by Dr. Archil KOBAKHIDZE on 7 Jul 2012 at 15:00 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments Scattering amplitudes in N=4 Super-Yang-Mills theory are tightly constrained by several general principles: Dual (super)conformal invariance, an operator product expansion for the leading singularity, discrete symmetries, the properties of transcendental functions, and various kinematic limits. Remarkably, these onstraints can be combined to almost completely determine the six-gluon scattering a ... More Presented by Prof. Lance DIXON on 4 Jul 2012 at 09:00 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 9. Heavy Ion Collisions Scientific program of NICA (Nuclotron-based Ion Collider fAcility) is now under realization phase at JINR (Dubna). The main goal of the program is an experimental study of hot and dense strongly interacting matter in heavy ion collisions at centre-of-mass energies of √sNN = 4-11 GeV (NN-equivalent) and at average luminosity of 10E27 cm-2 s-1 for Au (79+) in the collider mode (NICA collider). In ... More Presented by Prof. Vladimir KEKELIDZE on 6 Jul 2012 at 12:30 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 3 - BSM - Non-SUSY Exotics We search for a lepton flavor violating$\tau$decay into$\mu/e$and$\gamma$using the full data sample of approximately 1000 fb$^{-1}$collected with the Belle detector at the KEKB asymmetric-energy$e^+ e^-$collider. Presented by Prof. Kiyoshi HAYASAKA on 6 Jul 2012 at 16:15 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 3 - BSM - Non-SUSY Exotics We present results of searches for a new heavy 4th generation quark using leptonic, semileptonic and hadrnic final states.The full sample of 5 fb-1 of pp collisions recorded with CMS in 2011 at the center-of-mass energy of 7 TeV has been used. Presented by Dr. Sadia KHALIL on 6 Jul 2012 at 14:30 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 5 - B-Physics The search for the rare decay Bs to mu+ mu- with the ATLAS detector is discussed. Results form analysis of 2.4fb-1 of data collected in 2011 are presented. The production of B-mesons has been studied by ATLAS in several exclusive channels containing a ]/psi. Several analysis are discussed, including the recent observation of Bc -> ]/psi pi. Presented by Dr. Paolo IENGO on 6 Jul 2012 at 17:00 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 3 - BSM - Non-SUSY Exotics We report on a search for charged massive long-lived particles (CMLLPs), based on data collected with the D0 detector at the Fermilab Tevatron ppbar collider. We search for events in which one or more particles are reconstructed as muons but have speed and ionization energy loss (dE/dx) inconsistent with muons produced in beam collisions. CMLLPs are predicted in several theories of physics beyond ... More Presented by Prof. Yuri GERSHTEIN on 6 Jul 2012 at 11:45 Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3 Track: Track 3 - BSM - Non-SUSY Exotics A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q2 is performed in ep collisions at HERA. The differential cross section d\sigma/dQ2 , measured using the full H1 data sample corresponding to an integrated luminosity of 446 pb-1, is compared to the Standard Model prediction. No signicant deviation is obse ... More Presented by Dr. Eram RIZVI on 7 Jul 2012 at 17:20 Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11 Track: Track 4 - Top Quark Physics A search for flavor changing neutral currents in top quark decays is presented using a sample of top quark pair event candidates decaying via Wb and Zq into lνb and llq events. The search is performed at the CMS experiment at the LHC, using a data sample recorded in proton-proton collisions at a center-of-mass energy of 7 TeV. The observed number of events agrees with the standard model predictio ... More Presented by Dr. Yuan CHAO on 6 Jul 2012 at 11:45 Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3 Track: Track 3 - BSM - Non-SUSY Exotics We present a search for the pair production of first generation scalar leptoquarks (LQ) in data corresponding to an integrated luminosity of 5.4 fb^-1 collected with the D0 detector at the Fermilab Tevatron Collider in ppbar collisions at sqrt(s)=1.96 TeV. In the channel LQ \bar{LQ} --> e nu_e q q', where q, q' are u or d quarks, no significant excess of data over background is observed, and we se ... More Presented by Dr. Bjorn PENNING on 6 Jul 2012 at 09:50 Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3 Track: Track 3 - BSM - Non-SUSY Exotics A search for first generation scalar and vector leptoquarks produced in ep collisions is performed by the H1 experiment at HERA. The full H1 data sample is used in the analysis, corresponding to an integrated luminosity of 446 pb^-1. No evidence for the production of leptoquarks is observed in final states with a large transverse momentum electron or with large missing transverse momentum, and c ... More Presented by Dr. David SOUTH on 6 Jul 2012 at 09:20 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches Results are presented on the search for MSSM SUSY Higgs production and decays, including a neutral Higgs decaying to a pair of tau leptons, and a charged Higgs decaying in tau neutrino. The full data sample of 4.7 fb-1 of pp collisions collected in 2011 with the CMS experiment at a CM energy of 7 TeV have been analyzed, as well as a significant fraction of the 2012 luminosity delivered so far at t ... More Presented by Dr. Christian VEELKEN on 6 Jul 2012 at 16:00 Type: Poster Sessions Session: Poster Session Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches Results are presented on the search for the standard model Higgs boson decaying into two tau leptons, using both leptonic and hadronic decays of the tau. The sample are split into various categories to enhance the search sensitivity. The full data sample of 4.7 fb-1 of pp collisions collected in 2011 with the CMS experiment at a CM energy of 7 TeV have been analyzed, as well as a significant fract ... More Presented by Ms. Agni BETHANI on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3 Track: Track 3 - BSM - Non-SUSY Exotics A search for second and third generation scalar and vector leptoquarks produced in ep collisions via the lepton flavour violating processes ep → μX and ep → \tau X is performed by the H1 experiment at HERA. The full data sample taken at a centre-of-mass energy √s = 319 GeV is used for the analysis, corresponding to an integrated luminosity of 245 pb−1 of e+p and 166 pb−1 of e−p colli ... More Presented by Dr. David SOUTH on 6 Jul 2012 at 17:00 Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1 Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches A light$CP$-odd Higgs boson$(A^0)$is predicted in some extensions of the Standard Model; such a particle would be evident in decays of the$\Upsilon(nS)$resonance. Using a data sample of 102 million$\Upsilon(1S)$events and 158 million$\Upsilon(2S)$events collected by the Belle detector at the KEKB asymmetric-energy$e^+ e^-$collider, we search for light Higgs boson decays$A^0 \to \tau^ ... More
Presented by Prof. Paoti CHANG on 6 Jul 2012 at 16:45
Type: Poster Sessions Session: Poster Session
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
The search for the neutral Higgs bosons decaying via the mu+mu- channel in the MSSM m^max_h scenario is presented. The analysed data were recorded in 2011 with the CMS detector at 7 TeV centre of mass energy. The 95% C.L. exclusion limits on the cross section times branching ratio and the (m_{A^0}, tan\beta) limits are presented.
Presented by Dr. Adrian PERIEANU on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
We present a search for Higgs bosons in the bh(h-->bbar) and bbh(h-->bbar) channels at a center-of-mass energy of sqrt(s)=1.96 TeV with the D0 detector at the Fermilab Tevatron collider. In many Supersymmetric models the cross-section for production of neutral Higgs bosons in association with bottom quarks is greatly enhanced compared to the Standard Model, and over much of the parameter space the ... More
Presented by Dr. Avto KHARCHILAVA on 6 Jul 2012 at 15:15
Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219
Track: Track 8. Neutrinos
The EXO collaboration is searching for neutrinoless double beta decay in 136Xe. Observation of this process would establish the Majorana nature of neutrinos and lepton number violation, while determining an absolute mass scale for neutrinos. The EXO-200 detector is a ultra low background TPC, with an active mass of ~100 kg of liquid xenon enriched to 80.6% in the isotope 136. The detector is curre ... More
Presented by Dr. Peter C. ROWSON on 4 Jul 2012 at 09:30
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
We study the mass and the angular distributions of pairs of jets and pairs of a photon and a jet to test several new physics hypotheses such as: excited quarks, quantum black holes or quark contact interactions. The most recent results will be presented.
Presented by Dr. Dag GILLBERG on 7 Jul 2012 at 11:45
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
We present a search for the pair production of scalar top quarks (stop_1), the lightest supersymmetric partners of the top quarks, in ppbar collisions at a center-of-mass energy of 1.96 TeV, using data corresponding to an integrated luminosity of 7.3 fb^-1 collected with the D0 experiment at the Fermilab Tevatron Collider. Each scalar top quark is assumed to decay into a b quark, a charged lepton, ... More
Presented by Dr. James Alexander KRAUS on 5 Jul 2012 at 11:00
Type: Poster Sessions Session: Poster Session
Track: Track 3 - BSM - Non-SUSY Exotics
We search for the production of heavy resonances in proton-proton collisions at sqrt(s) = 7 TeV, with the Randall-Sundrum graviton as a benchmark model. We focus on the G to ZZ to qqbar nunubar reaction with boosted Z bosons. We look for the jet plus missing transverse energy signature in the 4.7 fb^-1 of data collected by the CMS detector during 2011. Since the event yield is compatible with wha ... More
Presented by Thiago FERNANDEZ PEREZ TOMEI on 7 Jul 2012 at 18:00
Type: Poster Sessions Session: Poster Session
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Results are presented on the search for the standard model Higgs boson decaying into two Z bosons, with one boson decaying into a pair of charged leptons, either muons or electrons, and the other boson decaying into a pair of taus which taus decay both hadronically and leptonically. This analysis is mainly sensitive for Higgs masses higher than 180 GeV where both Z's are on-shell. For low mass Hig ... More
Presented by Prof. Gobinda MAJUMDER on 7 Jul 2012 at 18:00
Type: Poster Sessions Session: Poster Session
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Results are presented on the search for the standard model Higgs boson decaying into two W bosons, with each W boson decaying into a charged lepton and a neutrino. The full data sample of 2012 luminosity delivered so far at the new energy of 8 TeV has been analyzed. WW production cross section is also presented.
Presented by Lara LLORET IGLESIAS on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Results are presented on the search for the standard model Higgs boson decaying into two W bosons, with at least one W boson decaying into a charged lepton and a neutrino. Several classes of events with zero to two or more jets are analysed separately. Associated production of the Higgs with a Z or W is discussed as well. The full data sample of 4.7 fb-1 of pp collisions collected in 2011 with t ... More
Presented by Dr. Emanuele DI MARCO on 7 Jul 2012 at 11:45
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Results are presented on the search for the standard model Higgs boson decaying into two Z bosons, with each boson decaying into a pair of charged leptons, either muons, electrons or taus. The full data sample of 4.7 fb-1 of pp collisions collected in 2011 at a CM energy of 7 TeV with the CMS experiment have been analyzed, as well as a significant fraction of the 2012 luminosity delivered so far a ... More
Presented by Mr. Markus KLUTE on 7 Jul 2012 at 11:00
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Results are presented on the search for the standard model Higgs boson decaying into two Z bosons, with one boson decaying into a pair of charged leptons, either muons or electrons, and the other boson decaying in neutrinos or jets. The full data sample of 4.7 fb-1 of pp collisions collected in 2011 at a CM energy of 7 TeV with the CMS experiment have been analyzed, as well as a significant fracti ... More
Presented by Dr. Francesco PANDOLFI on 7 Jul 2012 at 10:15
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Results are presented on the search for the standard model Higgs decaying into two b-quark jets, using associated production of the Higgs with W and Z bosons decaying to leptons. The full data sample of 4.7 fb-1 of pp collisions collected in 2011 with the CMS experiment at a CM energy of 7 TeV have been analyzed, as well as a significant fraction of the 2012 luminosity delivered so far at the new ... More
Presented by Dr. David LOPES-PEGNA on 7 Jul 2012 at 14:00
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Results are presented on the search for the standard model Higgs boson decaying into two tau leptons, using both leptonic and hadronic decays of the tau. The sample are split into various categories to enhance the search sensitivity. The full data sample of 4.7 fb-1 of pp collisions collected in 2011 with the CMS experiment at a CM energy of 7 TeV have been analyzed, as well as a significant fract ... More
Presented by Mr. Joshua James SWANSON on 6 Jul 2012 at 09:00
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Results are presented on the search for the standard model Higgs bosons decaying into two photons, and into a photon and a Z boson. Multivariate techniques are used to enhance the sensitivity. The full data sample of 4.7 fb-1 of pp collisions collected in 2011 at a CM energy of 7 TeV with the CMS experiment have been analyzed, as well as a significant fraction of the 2012 luminosity delivered so f ... More
Presented by Dr. Serguei GANJOUR on 7 Jul 2012 at 15:15
Type: Poster Sessions Session: Poster Session
Track: Track 4 - Top Quark Physics
A search for single-top production, ep -> etX, has been performed with the ZEUS detector at HERA using data corresponding to an integrated luminosity of 0.37 fb-1. No evidence for top production was found, consistent with the expectation from the Standard Model. Limits were computed for single-top production via flavour changing neutral current transitions.The result was combined with a previous Z ... More
Presented by Dr. Katarzyna WICHMANN on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
A search for squarks in Rparity violating supersymmetry is performed in e^\pm p collisions at HERA using the H1 detector. The full data sample taken at a centre-of-mass energy sqrt(s) = 319 GeV is used for the analysis, corresponding to an integrated luminosity of 255 pb^-1 of e+p and 183 pb^-1 of e^-p collision data. The resonant production of squarks via a Yukawa coupling lambda' is cons ... More
Presented by Dr. Gerhard Immanuel BRANDT on 5 Jul 2012 at 17:15
Type: Poster Sessions Session: Poster Session
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
A search for a Higgs boson in the four-lepton decay channel Higgs to ZZ(*), with each Z boson decaying to an electron or muon pair, is presented using 4.7 fb-1 of integrated luminosity collected during 2011 as well as considerable fraction of 2012 integrated luminosity recorded by the CMS detector in pp collisions from the LHC at CM energy of 7 TeV. The search covers Higgs boson mass hypotheses of ... More
Presented by Dr. Christian VEELKEN on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
We present a search for Kaluza-Klein (KK) particles predicted by models with universal extra dimensions (UED) using a data set corresponding to an integrated luminosity of 7.3 fb^-1, collected by the D0 detector at a pp center of mass energy of 1.96 TeV. The decay chain of KK particles can lead to a final state with two muons of the same charge. This signature is used to set a lower limit on the c ... More
Presented by Dr. Souza Santos ANGELO on 7 Jul 2012 at 15:45
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
We present the first search for supersymmetry (SUSY) in Zgamma final states with large missing transverse energy using data corresponding to an integrated luminosity of 6.2 fb-1 collected with the D0 experiment in ppbar collisions at sqrt(s)=1.96 TeV. This signature is predicted in gauge-mediated SUSY-breaking models, where the lightest neutralino is the next-to-lightest supersymmetric particle (N ... More
Presented by Dr. James Alexander KRAUS on 5 Jul 2012 at 12:00
Type: Poster Sessions Session: Poster Session
Track: Track 3 - BSM - Non-SUSY Exotics
Presented is a study of searches for two exotic particles - a heavy top quark partner with a fractional charge of 5/3, $T_{5/3}$, and its partner, the heavy $B$ quark with charge -1/3. These particles decay to a top quark and a $W$ boson, leading to very busy events with multi-leptons and multi-jets. Processes where same-sign dileptons are produced are considered. The backgrounds are predominantly ... More
Presented by Ms. Saptaparna BHATTACHARYA on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 4 - Top Quark Physics
We report a search for a narrow ttbar resonance that decays into a lepton+jets final state based on an integrated luminosity of 5.3/fb of proton-antiproton collisions at sqrt(s)=1.96 TeV collected by the D0 Collaboration at the Fermilab Tevatron Collider. We set upper limits on the production cross section of such a resonance multiplied by its branching fraction to ttbar which we compare to predic ... More
Presented by Dr. Azeddine KASMI on 6 Jul 2012 at 12:15
Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Vector boson fusion and associate production of Higgs bosons are searched for, with the Higgs decaying into vector bosons. The results are interpreted in a model for a fermiophobic Higgs. The full data sample of 4.7 fb-1 of pp collisions collected in 2011 with the CMS experiment at a CM energy of 7 TeV have been analyzed, as well a significant fraction of the 2012 luminosity delivered so far at th ... More
Presented by Dr. Matteo SANI on 6 Jul 2012 at 16:30
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 4 - Top Quark Physics
We present new direct constraints on a general Wtb interaction using data corresponding to an integrated luminosity of 5.4 fb-1 collected by the D0 detector at the Tevatron ppbar collider. The standard model provides a purely left-handed vector coupling at the Wtb vertex, while the most general, lowest dimension Lagrangian allows right-handed vector and left- or right-handed tensor couplings as we ... More
Presented by Prof. Kenneth BLOOM on 6 Jul 2012 at 15:15
Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
The results of a search for charged Higgs bosons are presented. The analysis is based on proton-proton collision data recently collected by the ATLAS experiment at the Large Hadron Collider, using ttbar events with a tau lepton in the final state. The data are consistent with the background from Standard Model processes. Assuming branching ratio BR(H+ -> taunu) = 100%, this leads to upper limits o ... More
Presented by Dr. Aldo SAAVEDRA on 6 Jul 2012 at 14:45
Type: Poster Sessions Session: Poster Session
Track: Track 2 - Beyond the Standard Model - SUSY
We report on a search for charged long-lived heavy particles, as predicted by several beyond the Standard Model theories. Such particles can be detected in ATLAS through anomalous specific ionisation measured in the Pixel detector, their slow motion (beta<1) measured in the calorimeter, and also through their possible muon-likeness in the Muon Spectrometer. Results of this search on the full data ... More
Presented by Dr. Elisa GUIDO on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
We present results of searches for compositeness and contact interactions in decays of excited quarks and leptons and inclusive spectra. The full data sample of 5 fb-1 of pp collisions collected in 2011 at a center-of-mass energy of 7 TeV with the CMS experiment have been used.
Presented by Dr. Kerstin HOEPFNER on 7 Jul 2012 at 16:45
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
Recent astrophysical observations have motivated interest in models with a new, dark sector containing GeV-scale gauge and Higgs bosons. In such models, dark-sector photons typically mix with the standard-model photon, enabling their detection in e+e- collisions at BABAR, with very little background in many of the channels. We present searches for a dark-sector photon and a dark-sector Higgs boson ... More
Presented by Dr. Adrian BEVAN on 7 Jul 2012 at 14:15
Type: Poster Sessions Session: Poster Session
Track: Track 3 - BSM - Non-SUSY Exotics
We present a search by the CMS experiment for new exotic particles decaying to the VZ final state, where V is either a W or a Z decaying hadronically and the Z decays to dielectrons or dimuons. The analysis uses the full 2011 dataset at √s = 7 TeV.
Presented by Ms. Flavia DE ALMEIDA DIAS on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
We present results for searches of the existence of large extra spatial dimensions. A variety of final states sensitive to both resonant and non-resonant enhancement of expected events have been analyzed. The full sample of 5 fb-1 of pp collisions recorded with CMS in 2011 at the center-of-mass-energy of 7 TeV has been used.
Presented by Dr. Alessio BONATO on 7 Jul 2012 at 16:00
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
We present results of searches for new heavy resonances decaying in hadronic final states. A variety of final states ranging from 2 jets up to 8 jets have been analyzed using the sample of 5 fb-1 of pp collisions at 7 TeV collected with CMS in 2011.
Presented by Dr. Andreas HINZMANN on 7 Jul 2012 at 12:30
Type: Poster Sessions Session: Poster Session
Track: Track 3 - BSM - Non-SUSY Exotics
We present a poster to report the results of a search for large extra dimensions in events with two isolated electrons using the whole 5 fb^-1 of data collected with the CMS detector at the LHC in 2011. The exclusion limits on the parameters of different models with different assumptions on the validity range of the model are shown
Presented by Mr. Seyed Mohsen ETESAMI on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
We present results of searches with leptons, jets and missing transverse energy in the final state sensitive to the existence of leptoquarks and heavy right majorana neutrinos. The full sample of 5 fb-1 of pp collisions recorded with CMS in 2011 at the center-of-mass energy of 7 TeV has been used.
Presented by Dr. James Francis HIRSCHAUER on 7 Jul 2012 at 10:05
Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
We search for a light CP-odd Higgs boson (A0) that arises in non-minimal supersymmetric extensions of the Standard Model and naturally couples strongly to bottom quarks. The search is conducted using radiative di-muon and di-tau decays of the Upsilon(1S) meson. We use BABAR’s large data sets of (92.8 +- 0.8) million Upsilon(2S) and (116.8 +- 1.0) million Upsilon(3S) decays to identify Upsilon(1S ... More
Presented by Prof. Yury KOLOMENSKY on 6 Jul 2012 at 17:00
Type: Poster Sessions Session: Poster Session
Track: Track 3 - BSM - Non-SUSY Exotics
The COMET experiment at J-PARC is an experiment to search for muon to electron conversion at a single event sensitivity of 3x10^{-16}. This process is charged-lepton flavor violating. We are planning to stage the COMET experiment. The staging approach is endorsed by J-PARC PAC and KEK. We will present the details of COMET Phase-I.
Presented by Prof. Yoshitaka KUNO on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
We present results of searches for new heavy gauge bosons decaying to dilepton, diphoton, lepton+MET, WZ, and ZZ final states. The full sample of 5 fb-1 of pp collisions at 7 TeV collected with CMS in 2011 have been analyzed as well as the new collisions recorded at 8 TeV in 2012.
Presented by Prof. Claudia WULZ on 7 Jul 2012 at 12:15
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
Several models of new physics, including split supersymmetry, predict the existence of heavy particles which are long-lived on timescales of the bunch spacing of the LHC. We present the results three dedicated searches using the measurement of the energy loss dE/dx in the tracking system, the time-of-flight and special jet triggers. The full sample of 5 fb-1 of pp collisions recorded with CMS in 2 ... More
Presented by Dr. Fedor RATNIKOV on 6 Jul 2012 at 12:00
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
Many supersymmetric and exotic models of new physics predict high-multiplicity events with leptons or electroweak gauge bosons and low missing transverse energy in the final state. We present results of a search for new physics at CMS in events with two photons and many hadronic jets with no requirement for large missing transverse energy.
Presented by Dr. Marc Gabriel WEINBERG on 7 Jul 2012 at 12:00
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
We present results of searches for new long-lived particles with a distinctive signature of decay products far from the primary event vertex. Dedicated trigger and reconstruction algorithms have been developed to identify such displaced particles. The full sample of 5 fb-1 of pp collisions recorded with CMS in 2011 at the center-of-mass energy of 7 TeV has been used.
Presented by Prof. Valerie HALYO on 6 Jul 2012 at 12:15
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
Resonances decaying into a pair of particles are an obvious place to look for phenomena beyond the Standard Model. This talk summarizes recent results on searches for resonances in lepton pairs, leptons and missing transverse energy and pairs of photons. The models considered are the Z' and W', the Randall-Sundrum gravitons as well as the ADD large extra dimension scenario. The talk presents resul ... More
Presented by Dr. Xabier ANDUAGA DEL POPOLO on 7 Jul 2012 at 11:00
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
The study of electroweak boson pair production is a powerful test of the spontaneously broken gauge symmetry of the Standard Model (SM) and can be used to search for phenomena beyond the SM. Heavy articles decaying to gauge boson pairs are predicted by many scenarios of new physics, including Extra Dimensions, and Technicolor models. We present generic searches for a heavy particle decaying to a p ... More
Presented by Mr. Giovanni ZEVI DELLA PORTA on 7 Jul 2012 at 11:15
Type: Poster Sessions Session: Poster Session
Track: Track 2 - Beyond the Standard Model - SUSY
We present a search for Physics beyond the Standard Model (SM) in final states with a Z boson, jets and missing transverse energy, using the full data sample collected in 2011 by the CMS detector at the Large Hadron Collider corresponding to an integrated luminosity of 4.7 /fb. This final state is predicted in several models of Physics beyond the SM, including supersymmetry. The Jet-Z Balance meth ... More
Presented by Marco Andrea BUCHMANN, Marco-Andrea BUCHMANN on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
A search for the Standard Model Higgs boson in the diphoton decay channel in proton-proton collisions using recent data collected with the ATLAS detector at the LHC, over the diphoton mass range 110-150 GeV is reported. Upper limits on the cross-section times branching ratio are derived. Additionaly, the results of the search for the fermiophobic Higgs boson are presented, based on the 4.9 fb-1 of ... More
Presented by Ms. Kerstin TACKMANN on 7 Jul 2012 at 15:00
Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Results are presented on the search for the non standard-model Higgs production and decays, beyond MSSM SUSY, including the production of a doubly charged Higgs boson decaying onto a pair of like sign charged leptons and a search for a low mass neutral a_0 decaying into a pair of muons. The full data sample of 4.7 fb-1 of pp collisions collected in 2011 with the CMS experiment at a CM energy of 7 ... More
Presented by Prof. James OLSEN on 6 Jul 2012 at 15:00
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
A Higgs boson search in the H-> tau^+ tau^- decay mode has been performed using proton-proton collision data recently collected with the ATLAS detector at the Large Hadron Collider. The search was performed in the mass range of 100-150 GeV. Upper limits on the cross-section times branching ratio are derived.
Presented by Dr. Swagato BANERJEE on 6 Jul 2012 at 09:15
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
A Higgs boson search in the H->WW (lvlv, lvqq) decay mode has been performed using proton-proton collisions recently recorded by the ATLAS detector. The search in the final state with two leptons and two neutrinos covers a broad mass range from 110 - 600 GeV. Upper limits are derived on the cross section of a Standard Model Higgs boson.The semi-leptonic final state with a lepton, neutrino and ... More
Presented by Dr. Biagio DI MICCO on 7 Jul 2012 at 11:30
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
A search for the Standard Model Higgs boson in the decay channel H -> ZZ* -> l+l-l+l- where l= (e, mu) is performed, based on the proton-proton collision data at recorded recently with the ATLAS detector. Upper limits are derived on the cross section of a Standard Model Higgs boson with a mass between 110 GeV and 600 GeV.
Presented by Dr. Konstantinos NIKOLOPOULOS on 7 Jul 2012 at 11:15
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
The results of the ATLAS search for the Standard Model Higgs boson in the mass range 110 < mH < 130 GeV with the Higgs boson produced in association with a W or Z boson and decaying to a b-quark pair are presented. The search is performed in a dataset of proton-proton collisions recently recorded by the ATLAS experiment at the LHC.
Presented by Dr. Giacinto PIACQUADIO on 7 Jul 2012 at 14:15
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
The search for the Standard Model Higgs boson via its decays into two Z bosons is presented, based on the proton-proton collisions recorded recently by the ATLAS experiment at the LHC. For Higgs boson masses above 200 GeV, the sensitivity is substantially enhanced by using channels in which one of the Z bosons decays into neutrinos or quarks. With the current integrated luminosity, a wide mass ra ... More
Presented by Dr. Carl Bryan GWILLIAM on 7 Jul 2012 at 10:00
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
We present searches for a low mass standard model Higgs boson produced in association with a W or a Z boson at a center of mass energy sqrt(s)=1.96 TeV with the D0 detector at the Fermilab Tevatron collider. The search is performed iin the full D0 Run2 data sample using the leptonic decay channels of the W and the Z boson (W--->lv, Z--->ll and Z--->vv) leading to signatures with one lepton and an ... More
Presented by Dr. Satish DESAI on 7 Jul 2012 at 14:30
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
Many extensions of the Standard Model introduce additional Higgs fields that include one or more dark Higgs bosons to the interactions. Such a gauge boson, also known as a dark photon, typically has very weak coupling to Standard Model particles. Experimental results from direct dark matter searches (e.g., DAMA/LIBRA) and other experimental anomalies (e.g., $g-2$) can be explained by such an addi ... More
Presented by Prof. Ming-Chuan CHANG on 7 Jul 2012 at 13:45
Type: Parallel Sessions Session: Plenary3 - The Standard Model -TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
The Minimal Supersymmetric extension of the Standard Model (MSSM) predicts the existence of three neutral and two charged Higgs bosons. The search for the neutral MSSM Higgs bosons in the H-> tau^+ tau^- and H->mu^+mu^- decay modes has been performed using proton-proton collision data recently collected with the ATLAS detector at the Large Hadron Collider. The exclusion limits at the 95% confiden ... More
Presented by Mr. Sascha Ulrich THOMA on 6 Jul 2012 at 16:15
Type: Poster Sessions Session: Poster Session
Track: Track 4 - Top Quark Physics
Using data collected with the D0 detector at the Fermilab Tevatron Collider, corresponding to 5.3 fb-1 of integrated luminosity, we search for violation of Lorentz invariance by examining the ttbar production cross section in lepton+jets final states. We quantify this violation using the standard-model extension framework, which predicts a dependence of the ttbar production cross section on sidere ... More
Presented by Physics Coordinators D0 on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10
Track: Track 5 - B-Physics
We report updated measurement of the CP-violating phase phi_s and of the decay width differences for the two mass eigenstates DeltaGamma_s from the flavor-tagged decay B0s-->J/psi+phi. We also present measurements of the branching ratios for the decays B0s-->J/psi+f0 and B0s-->J/psi+f2, a study of the angular distribution for the latter decay and improve the determination of the CP violation param ... More
Presented by Dr. Dmitri TSYBYCHEV on 7 Jul 2012 at 16:30
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
Searches for physics beyond the standard model are intensively pursued using the full CDF Run II sample. Many among them are pursued in the top-quark sector because it is believed that the top-quark, due to its very large mass, may play a special role in the spontaneous breaking of the electroweak symmetry of the standard model as well as in possible new physics. We present searches for a heavy Z' ... More
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
We present results of searches for SUSY production at CMS in events with third-generation signatures. Along with missing energy, the final states may include hadronic jets with or without b-quark tag, light leptons, and tau leptons. These features serve both to distinguish standard-model components, and for sensitivity to those SUSY models that lead to final states rich in heavy-flavored particles ... More
Presented by Dr. Altan CAKIR on 5 Jul 2012 at 11:30
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
We present results of searches for SUSY production at CMS in events with multiple lepton production. These include final states with Z bosons decaying to lepton pairs, non-resonant same- and opposite-sign lepton pairs, and three or more isolated leptons. The results are used to exclude previously unexplored regions of the supersymmetric parameter space assuming R-parity conservation with the light ... More
Presented by Dr. Pablo MARTINEZ RUIZ DEL ARBOL on 5 Jul 2012 at 10:15
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
We present results of searches for SUSY production at CMS in events with one or two isolated photons. The results are interpreted in terms of guage-mediation models, with the gravitino as the lightest supersymmetric particle.
Presented by Prof. Mike HILDRETH on 5 Jul 2012 at 12:15
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
We search for evidence of Supersymmetry in events with a single lepton, multijets and missing energy. The search is done with proton-proton collision data collected by the CMS detector at the CERN Large Hadron Collider. The backgrounds, which are primarily from W+jet and top quark production, are predicted with control samples in the data. The results are interpreted in terms of the constrained mi ... More
Presented by Prof. Kajari MAZUMDAR on 5 Jul 2012 at 10:00
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
We present results of searches for SUSY production at CMS in events containing hadronic jets and missing energy. Various discriminants based on the event kinematics are employed to suppress standard-model backgrounds. The results are interpreted in the context of the Constrained Minimal Supersymmetric Standard Model, and of a number of "simplified models".
Presented by Dr. Seema SHARMA on 4 Jul 2012 at 09:45
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
Naturalness arguments for weak-scale supersymmetry favour supersymmetric partners of the third generation quarks with masses not too far from those of their Standard Model counterparts. Scalar top or bottom quarks with masses less than a few hundred GeV can give rise to direct pair production rates at the LHC that can be observed in the data sample recorded by the ATLAS detector. The talk presents ... More
Presented by Dr. Martin John WHITE on 5 Jul 2012 at 11:15
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
Several extensions of the Standard Model predict the existence of massive long-lived particles. We report on searches for weakly-interacting long-lived particles decaying to collimated lepton-jets far away from the interaction point, and for production of highly-ionizing magnetic monopoles. The talk presents results of analyses using data recorded in 2011 at sqrt(s)=7 TeV centre-of-mass energy by ... More
Presented by Dr. Andrew HAAS on 6 Jul 2012 at 11:30
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
Events composed of one high transverse energy jet and large missing transverse momentum represent one of the simplest and most striking signatures that can be observed at a hadron collider. The Standard Model contribution to such 'monojet' events is dominated by a Z decaying to a pair of neutrinos plus a recoiling jet. Several new physics models predict monojet events. They can occur via productio ... More
Presented by Dr. David SALEK on 7 Jul 2012 at 14:30
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
We report on searches of heavy particles decay to a pair of taus as well as a search for third-generation leptoquarks decaying to a jet and a tau lepton. The studies reported use the full data sample recorded in 2011 at sqrt(s)=7 TeV centre-of-mass energy by the ATLAS experiment at the LHC.
Presented by Dr. Peter WAGNER on 7 Jul 2012 at 10:20
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
Events containing several leptons or two like-sign leptons are rarely produced in the Standard Model (SM), but occur with an enhanced rate in many models of new physics. We look for anomalous production of pair of prompt like sign leptons or events with three or more leptons using the full data sample recorded in 2011 at sqrt(s)=7 TeV centre-of-mass energy by the ATLAS experiment at the LHC.
Presented by Dr. Else LYTKEN on 6 Jul 2012 at 17:45
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
Naturalness arguments for weak-scale supersymmetry favour supersymmetric partners of the Higgs and electroweak gauge bosons, so-called gauginos, with masses not too far from those of their Standard Model counterparts. Gauginos with masses less than a few hundred GeV can give rise to direct pair production rates at the LHC that can be observed in the data sample recorded in 2011 by the ATLAS detect ... More
Presented by Mr. Tobias KRUKER on 5 Jul 2012 at 16:00
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
Models with gauge-mediated supersymmetry breaking predict that the lightest supersymmetric particle is a gravitino with negligible mass so that the phenomenology of the supersymmetric events produced at the LHC is determined by the next-to-lightest supersymmetric particle (NLSP). Depending on the model parameters, the NLSP can be a neutralino with significant bino admixture that will decay into a ... More
Presented by Mr. Steffen SCHAEPE on 5 Jul 2012 at 11:45
Type: Parallel Sessions Session: TR2 - Plenary 3 - Beyond the Standard Model - SUSY
Track: Track 2 - Beyond the Standard Model - SUSY
An extended QCD sector beyond the minimal supersymmetric standard model or the admission of R-parity violation introduces new signatures to the search for supersymmetry at the LHC. Strongly interacting resonances may decay to jets, sleptons may decay via lepton-flavour violating processes and lightest supersymmetric particles may decay into many leptons with or without missing transverse momentum. ... More
Presented by Mr. Daniel Joseph POMEROY on 5 Jul 2012 at 17:00
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
We present searches for a standard model Higgs boson decaying into W boson pairs and produced either via the gluon fusion process or in association with an additional W or Z boson. Different decay topologies are considered, exploiting both leptonic and hadronic decays of the W boson. The final states considered are two leptons, both with equal and opposite charges, final states with three or more ... More
Presented by Dr. Abid PATWA on 7 Jul 2012 at 12:15
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
We present the result of two searches for the standard model Higgs boson using the Run 2 data sample collected with the D0 detector at the Fermilab Tevatron collider at a center of mass energy sqrt(s)=1.96 TeV. In the first search the Higgs boson is searched for in final states with two high transverse momentum photons, exploiting in addition to the diphoton invariant mass spectruim a large number ... More
Presented by Prof. Paul GRANNIS on 6 Jul 2012 at 09:30
Type: Parallel Sessions Session: Room 219 - BSM - Non-SUSY - TR3
Track: Track 3 - BSM - Non-SUSY Exotics
We present the results of searches for dark matter performed using data collected by the CMS experiment at the LHC in pp-collisions at a center-of-mass energy of 8 TeV. Searches for dark matter candidates are performed in events with missing transverse energy. Traditionally, searches for supersymmetry (SUSY), where the lightest SUSY particle is a good candidate for dark matter, have been performed ... More
Presented by SARAH MALIK, Sarah MALIK on 7 Jul 2012 at 14:00
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 4 - Top Quark Physics
Several extensions of the Stand ard Model predict the presence of new particles that couple to the top quark. With the dataset of proton - proton collisions collected by the ATLAS detector at the Large Hadron Collider we present searches for reson ances decaying to top - quark pairs.
Presented by Dr. Marcel VOS on 6 Jul 2012 at 14:15
Type: Poster Sessions Session: Poster Session
Track: Track 3 - BSM - Non-SUSY Exotics
We present results from searches for heavy exotic vector-like quarks performed using 5 fb-1 data sample of pp collisions at the center-of-mass energy of 7 TeV collected by the CMS detector at LHC.
Presented by Prof. Kai-Feng CHEN on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
Various extensions of the Standard Model predict the existence of new types of quarks. We report on several search channels such as vector-like quarks that couple to light quarks and Z or W bosons or new quarks decaying to Z boson and b quark. The talk presents results from searches for vector like quarks using the data sample recorded in 2011 at sqrt(s)=7 TeV centre-of-mass energy by the ATLAS ex ... More
Presented by Mr. Merlin DAVIES on 6 Jul 2012 at 14:00
Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
We present a review of the searches for very rare decays to muon final states performed at LHCb using 1.0 fb–1 of pp collisions at 7 TeV centre of mass energy. Flavour changing neutral current processes, such as B0s -> μ+ μ– are highly suppressed in the Standard Model (SM). Such decays therefore allow the contributions from new processes or new heavy particles to significantly modify the ex ... More
Presented by Mr. Mathieu PERRIN-TERRIN on 6 Jul 2012 at 17:15
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 4 - Top Quark Physics
We present searches for single top-quark production in the s-channel at 7 TeV proton-proton collisions with the ATLAS detector at the Large Hadron Collider. Limits. The result of a search for an exotic W’ boson production in the single top quark s-channel is also given.
Presented by Dr. Barbara ALVAREZ GONZALEZ on 6 Jul 2012 at 11:15
Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11
Track: Track 11. Particle Astrophysics and Cosmology
The ARGO-YBJ experiment is an unconventional air-shower array designed for studying astronomical gamma-ray sources at energy greater than few hundred GeV and cosmic-ray physics at energy greater than about 1 TeV. The detector fulfils the requirements to achieve such goals thanks to its high-altitude location, 4300 meters a.s.l. on the Tibet plateau, and to its structure: a full-coverage layer of ... More
Presented by Dr. Paolo CAMARRI on 7 Jul 2012 at 14:45
Presented by Dr. Phillip URQUIJO on 10 Jul 2012 at 14:10
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 5 - B-Physics
We present a search for the four-body semileptonic baryonic decay $B^-\to p\bar p\ell^-\bar\nu_\ell$ ($\ell=e,\ \mu$) based on a data sample of 772 million $B\bar B$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy electron-positron collider. In this study, a new neural-network based hadronic $B$-meson tagging method is applied. The theoretical ... More
Presented by Mr. Christian OSWALD on 5 Jul 2012 at 10:30
Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219
Track: Track 8. Neutrinos
The possibility of mixing between standard active neutrinos and neutrino fields which are singlets under the gauge symmetries of the Standard Model was proposed a long time ago. Recent tensions between world-wide experimental data renewed the possibility of at least a sterile neutrino state to explain the observations. While a huge effort is being devoted to resolve the standard three-neutrino mix ... More
Presented by Prof. Maximiliano SIOLI on 5 Jul 2012 at 14:45
Type: Poster Sessions Session: Poster Session
Track: Track 2 - Beyond the Standard Model - SUSY
We calculate Bayes factors to quantify how the feasibility of the constrained minimal supersymmetric model (CMSSM) has changed in the light of a series of observations. This is done in the subjective Bayesian spirit where probability reflects a degree of belief in a proposition and Bayes' theorem tells us how to update it after acquiring new information. Our experimental baseline is the approxim ... More
Presented by Mr. Benjamin FARMER on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11
Track: Track 11. Particle Astrophysics and Cosmology
The annihilation or decay of dark matter (DM), or other new physics, could inject high-energy electrons and photons into the universe during the cosmic dark ages. The resulting modification to the cosmic ionization history induces a characteristic perturbation to the anisotropies of the cosmic microwave background (CMB) radiation. I will show how to describe an arbitrary energy injection history i ... More
Presented by Dr. Tracy SLATYER on 7 Jul 2012 at 12:15
Type: Poster Sessions Session: Poster Session
Track: Track 4 - Top Quark Physics
New physics at the TeV scale is highly anticipated at the LHC. New particles with color, if within the LHC energy reach, will be copiously produced. One such particle is a diquark, having the quantum numbers of two quarks, and can be a scalar or a vector. It will decay to two light quarks, or two top quarks, or a top and a light quark, (up or down type depending on the quantum number of the produc ... More
Presented by Prof. Satyanarayan NANDI on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: TR4 - Top Quark Physics
Track: Track 4 - Top Quark Physics
We present measurements of single top quark production, performed using CMS data collected in 2010-2011 at a centre-of-mass energy of 7 TeV. The cross section for the electroweak production of single top quarks is measured in the t-channel using various methods. The combined result is used to place a constraint on the CKM matrix element Vtb. The data sample analyzed allows to study also differenti ... More
Presented by Dr. Gabriele BENELLI on 5 Jul 2012 at 11:30
Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6
Track: Track 15. Education and Outreach
We demonstrate social media in action along with a panel discussion on how you could benefit from using these platforms to better engage with your audiences. Social media are increasingly used as tools for science communication by science journalists and writers, by scientific organisations and laboratories, as well as by scientists themselves. These media offer many advantages over traditional me ... More
Presented by Mrs. Claudia MARCELLONI DE OLIVEIRA on 7 Jul 2012 at 11:00
Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6
Track: Track 8. Neutrinos
Recent results of the Super-Kamiokande (SK) solar neutrino measurements are presented. The main goal of SK's solar analysis is to observe the MSW effect, i.e. a solar neutrino energy spectrum distortion induced by matter in the Sun, and a day/night solar neutrino flux asymmetry induced by matter in the Earth. Thanks to the improvement of the detector's water circulation system, low energy backgr ... More
Presented by Dr. Yusuke KOSHIO on 5 Jul 2012 at 09:45
Session: BSM / Spectroscopy / IUPAP-C11 Report
Track: Plenary Sessions
Presented by Dr. Roman MIZUK on 10 Jul 2012 at 16:40
Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model
Track: Track 12. Formal Theory Developments
We study the spectrum of vector and scalar mesons in the holographic dual of a walking gauge theory , obtained by embedding D7 - anti-D7 probe branes in a certain type IIB background. We show that there is a nontrivial relation that needs to be satisfied in order for axial-vector modes to exist The scalar mesons arise from fluctuations of the probe flavour branes and complement the (axial-)vector ... More
Presented by Prof. L.C. Rohana WIJEWARDHANA on 4 Jul 2012 at 09:40
Type: Parallel Sessions Session: TR4 - Top Quark Physics
Track: Track 4 - Top Quark Physics
n 7 TeV proton - proton collisions at the LHC, pairs of top and anti-top quarks are expected to be mostly produced through gluon fusion, in contrast to production at the Tevatron, where quark annihilation dominates. The ATLAS experiment has now recorded a large number of top quark pairs, allowing this domain to be explored in detail. We present measurements of the spin correlation between top and ... More
Presented by Dr. Markus JüNGST on 5 Jul 2012 at 15:00
Type: Parallel Sessions Session: TR4 - Top Quark Physics
Track: Track 4 - Top Quark Physics
We present a measurement of the ratio of events with correlated t and tbar spins to the total number of ttbar events. This ratio f is evaluated using a matrix-element-based approach in events with a single lepton (electron or muon) and at least four jets and in events with two leptons (ee, emu, mumu) and at least two jets. We analyze ppbar collisions data corresponding to an integrated luminosity ... More
Presented by Dr. Yvonne PETERS on 5 Jul 2012 at 16:00
Type: Parallel Sessions Session: TR4 - Top Quark Physics
Track: Track 4 - Top Quark Physics
Measurement of the polarisation of W bosons and top anti-top spin correlations in top-quark decays are presented. The analysis makes use of top-pair events in proton-proton collisions at the LHC at a centre-of-mass energy of 7 TeV using data collected by the CMS experiment during the year 2011. Final states are selected where one of the two W bosons decays into electron-neutrino or muon-neutrino, ... More
Presented by Dr. Suharyo SUMOWIDAGDO on 5 Jul 2012 at 15:15
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 14. Future Accelerators
In order to exploit the full potential of proposed future high-energy electron-positron colliders, precise knowledge of the beam polarization is required as it evolves throughout the entire machine. Here we discuss global spin tracking efforts in the ILC design from source to Interaction Point. Numerical results are presented for the latest International Linear Collider (ILC) and Compact Linear ... More
Presented by Dr. Anthony HARTIN on 7 Jul 2012 at 10:00
Type: Parallel Sessions Session: Plenary 3 - The Standard Model - TR1
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
Although the sensitivity to a low-mass Standard Model Higgs boson at the Fermilab Tevatron is highest for the primary search channels ($H\to b\bar{b}$ decay in association with a vector boson and H-WW), other channels contribute significantly to the combined Higgs search sensitivity. We report the results of searches for the Higgs boson produced in association with a top quark pair with the $H\to ... More Presented by Dr. Elisabetta PIANORI on 6 Jul 2012 at 09:45 Type: Poster Sessions Session: Poster Session Track: Track 12. Formal Theory Developments We investigate the two loop contributions to the effective action of static gravitational fields at finite temperature. This allows us to take into account the effects of interactions of the thermal particles and the resulting higher loop contributions to the pressure of thermal matter in a gravitational background. Presented by Dr. Fernando T BRANDT on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP The LHC has successfully delivered more than 12 /fb of data through operations from 2009-2012, which CMS has used for wide range of physics analyses. CMS is planning a set of detector upgrades beginning in 2013 and continuing to support physics in the HL-LHC era, which will extend the delivered luminosity up to 3000 /fb by 2030. The projects already in the technical design phase in planned improve ... More Presented by Prof. Jeremy MANS on 6 Jul 2012 at 16:35 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology Direct searches for dark matter are one of the most promising ways to discover new particles and fields. For over a decade, the Cryogenic Dark Matter Search has been a leader in searches for dark matter. CDMS has pioneered the use of athermal phonon and ionization sensors to achieve world-leading sensitivity to a theoretically-favored dark matter candidate, the Weakly Interacting Massive Particle. ... More Presented by Dr. Lauren HSU on 7 Jul 2012 at 10:30 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos Neutrinoless double-beta decay (DBD) could answer the key question regarding the Majorana or Dirac nature of neutrinos and give an answer to the unknown absolute mass scale as well as on the neutrino mass hierarchy. High-Purity Germanium (HPGe) detectors are extremely sensitive tools for the search of neutrinoless DBD. This is demonstrated by the GERDA (GERmanium Detector Array) experiment that ... More Presented by Dr. Bela MAJOROVITS on 4 Jul 2012 at 09:00 Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11 Track: Track 11. Particle Astrophysics and Cosmology The Alpha Magnetic Spectrometer AMS-02 has been installed in May 19th 2011 on the International Space Station where it will detect cosmic rays for the next decades. AMS-02 with its accurate measurements up to the TeV scale will contribute to our knowledge of the Universe providing the most sensitive search for the existence of primordial anti matter and indirect search for dark matter. Nine layer ... More Presented by Prof. Veronica BINDI on 7 Jul 2012 at 17:30 Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13 Track: Track 13. Detectors and Computing for HEP The ATLAS experiment is designed to study the proton-proton collisions produced at the Large Hadron Collider (LHC) at CERN. Its calorimeter system measures the energy and direction of final state particles with pseudo rapidity$|\eta| < 4.9$. Accurate identification and measurement of the characteristics of electromagnetic objects (electrons/photons) are performed by liquid argon (LAr)-lead sampli ... More Presented by Dr. Carlos SOLANS SANCHEZ on 5 Jul 2012 at 09:30 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos Cuore (Cryogenic Underground Observatory for Rare Events) is a second generation neutrino-less double beta decay experiment whose sensitivity is expected to be in the range of 41-95 meV for the electron neutrino effective mass. In Cuore the decay of 9.6 10**26 Te-130 nuclei (206 kg) is observed by means of 988 TeO2 crystals acting as bolometers at very low temperature (~10 mK). The experiment is ... More Presented by Dr. Sergio DI DOMIZIO on 4 Jul 2012 at 09:15 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 8. Neutrinos EGADS (Evaluating Gadolinium's Action on Detector Systems) is a test facility for a new neutrino detection method using a gadolinium-loaded water Cherenkov detector. In this method, events due to anti-neutrino charged-current interactions on protons (i.e., inverse beta decay) are identified by the coincident detection of a prompt positron signal and a delayed gamma-ray signal from neutron capture ... More Presented by Dr. Yano TAKATOMI on 5 Jul 2012 at 09:30 Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219 Track: Track 8. Neutrinos The OPERA neutrino detector built in the underground Gran Sasso Laboratory is designed to detect muon-neutrino to tau-neutrino oscillations in direct appearance mode. The hybrid apparatus consists of an emulsion/lead target complemented by electronic detectors. It is placed in the long-baseline CERN to Gran Sasso neutrino beam (CNGS) 730 km away from the source. The running of the experiment and ... More Presented by Dr. Marilisa DE SERIO on 5 Jul 2012 at 15:15 Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13 Track: Track 14. Future Accelerators The SuperB experiment is a next generation Super Flavour Factory expected to accumulate 75ab^-1 of data at the Y(4S) in five years of nominal running. This facility will be constructed at the Cabibbo Lab in the Rome Tor Vergata Campus and will be operational later this decade. In addition to running at the Y(4S), SuperB will be able to accumulate data at the psi(3770) and above and below the Y ... More Presented by Umberto DOSSELLI on 6 Jul 2012 at 09:30 Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model Track: Track 12. Formal Theory Developments Future linear colliders will be precision machines which, among other things, will closely study the Higgs sector, provide tighter bounds on electroweak observables and look for new physics via polarised beams. The luminosity requirements of such machines entail very intense lepton bunches at the IP with associated strong electromagnetic fields. These strong fields not only lead to obvious phenome ... More Presented by Dr. Anthony HARTIN on 5 Jul 2012 at 10:15 Type: Poster Sessions Session: Poster Session Track: Track 6. QCD, Jets, Parton Distributions In the Thermodynamical Model the quarks and gluons are treated as Fermi adn Bose gases.The nucleon structure functions calculated using this model agree well with the experimental values.Hence we now propose to use this model to calculate the nucleon structure functions including the higher twist contributions and compare with the corresponding experimental data. This throws more light on the quar ... More Presented by Dr. Krishna Kumar SINGH on 7 Jul 2012 at 18:00 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 5 - B-Physics During 2011 data taking, LHCb has recorded large samples of semileptonic B decays. These provide potential to study CP violation effects in all of the D0, B0 and B0s systems. For the former, the charge of the muon in B -> D0 μ ν X decays provides a novel procedure to tag the flavour of the neutral D meson at production, allowing competitive sensitivity for the measurement of the difference of CP ... More Presented by Prof. Marina ARTUSO on 7 Jul 2012 at 15:00 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy LHCb collected 1.0 fb–1 of data in 2011, corresponding to O(10^8) fully reconstructed decays of open charm hadrons. This data provides unprecedented samples of charmed hadrons, allowing precise measurements of mixing and CP violation parameters. We report the results of searches for mixing and CP violation in 2-body and multi-body decays, with analyses using part or all of the 2011 data. Presented by Dr. Jordi GARRA TICO on 5 Jul 2012 at 16:45 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy CMS has searched for exotic charmonium states in the data sample collected in proton-proton collisions at 7 TeV in 2011. The X(3872) state is reconstructed in the J/psi pi+ pi- decay channel and the production cross-section is computed by determining the ratio to psi(2S) production in the same decay channel. For the first time, prompt and non-prompt contributions to the X(3872) cross section are d ... More Presented by Keith ULMER on 5 Jul 2012 at 12:00 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 5 - B-Physics The LHCb experiment is a general purpose forward spectrometer operating at the Large Hadron Collider, optimized for the study of B and D hadrons. LHCb collected 1.0 fb-1 of integrated luminosity during 2011 data taking, collecting unprecedented large samples of B hadron decays to final states involving charmed hadrons. These decays offer many complementary measurements of CP violation and CKM matr ... More Presented by Ms. Alexandra MARTIN SANCHEZ on 7 Jul 2012 at 12:15 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 5 - B-Physics Charmless multibody B decays proceeding through the quark transitions b -> q qbar s(d) are relevant laboratories to study both direct and mixing-induced CP violation effects and to search for deviations from Standard Model expectations. The 1.0 fb−1 of data recorded by the LHCb experiment in 2011 have been analyzed to reconstruct B+, B0 and B0s decays in various multibody final states. We report ... More Presented by Dr. Fernando Luiz FERREIRA RODRIGUES on 7 Jul 2012 at 11:15 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy The rare decays B_s(B^0)->mu+mu-, B0->K*mu+mu- and D0->mu+mu- are excellent tests of the flavor sector of the Standard Model and are sensitive to new physics. We report on studies of these decays performed with the CMS experiment using pp collisions data collected in 2011 at a centre-of-mass energy of 7 TeV. We present the first observation of the excited B baryon Xi_b* in the strong decays to ... More Presented by Mr. Keith ULMER on 6 Jul 2012 at 15:00 Type: Parallel Sessions Session: Room 220 - Neutrinos / QCD, Jets, Parton Distributions - TR6 Track: Track 6. QCD, Jets, Parton Distributions Due to its unique pseudorapidity coverage and the possibility of extending the measurements to low transverse momenta, LHCb provides important input to the understanding of particle production and energy flow in a kinematical range where QCD models have large uncertainties. Measurements of charged, strange and charmed particle production are compared to predictions. In addition, studies of the en ... More Presented by Dr. Raluca MURESAN on 6 Jul 2012 at 14:00 Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc. Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy We present a measurement of the main parameters of the$\psi(2S)$and$\psi(3770)$resonances, which has been performed with the KEDR detector at the VEPP-4M$e^{+}e^{-}$collider. Fitting the energy dependence of the multihadron cross section in the vicinity of the$\psi(2S)$we obtained the mass value and the product of the electron partial width by the branching fraction into hadrons. These ... More Presented by Mr. Korneliy TODYSHEV on 5 Jul 2012 at 14:45 Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9 Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy Rare b -> s μ+ μ– transitions that proceed via flavour changing neutral currents are suppressed in the SM and provide a sensitive probe of new physics contributions entering in competing diagrams. The dataset collected with the LHCb experiment has enabled measurements to be made in decays such as B0 -> K*0 μ+ μ–, B+ -> K+ μ+ μ– and B0s -> φ μ+ μ–. Particularly interesting are the ... More Presented by Dr. Abraham Antonio GALLAS TORREIRA on 6 Jul 2012 at 15:15 Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10 Track: Track 5 - B-Physics We present a time-dependent measurement of CP violation parameters in$B^0 \to \pi^+\pi^-$decays. These results are obtained from the full data sample that contains 772 million$B\overline{B}$pairs collected at the$\Upsilon(4S)$resonance with the Belle detector at the KEKB asymmetric-energy$e^+e^-$collider. Presented by Dr. Jeremy DALSENO on 7 Jul 2012 at 16:45 Type: Parallel Sessions Session: Room 217 - Education & Outreach - QCD, Jet, Parton Distributions - TR15&6 Track: Track 6. QCD, Jets, Parton Distributions We report QCD studies of pseudoscalar meson pair production in two-photon collisions at the Belle experiment. Differential cross sections have been measured for$\pi^+ \pi^-$,$\pi^0 \pi^0$,$K^+ K^-$,$K_S K_S$,$\eta \pi^0$and$\eta \eta$final states. Their$W$dependence and angular distributions are compared with perturbative and non-perturbative QCD predictions at$(2.4-3.1)\ {\rm GeV} < W ... More
Presented by Dr. Hideyuki NAKAZAWA on 7 Jul 2012 at 17:15
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
We present the observation of a narrow mass state decaying into Y(1s)+photon, where the Y(1s) is detected by its decay into a pair of oppositely charged muons and the photon is identified through its conversion into an electron-positron pair. The significance of this observation is 5.6 standard deviation. The mass of the state is centered at 10.551+/-0.014(stat)+/-0.017 GeV, which is consistent wi ... More
Presented by Dr. Claus BUSZELLO on 5 Jul 2012 at 11:15
Type: Parallel Sessions Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
Using samples of 102 million $\Upsilon(1S)$ and 158 million $\Upsilon(2S)$ events and about 70 fb${}^{-1}$ of data taken in the nearby continuum with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider, we compare the inclusive production rates of baryons in 3-gluon vs. quark fragmentation processes. The spectra of $p$, $\Lambda$, $\Sigma$, $\Xi$, and $\Omega$ baryons are compared, ... More
Presented by Prof. Youngjoon KWON
Type: Parallel Sessions Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
A study of events containing two tau leptons with high transverse momentum has been performed with the ZEUS detector at HERA, using a data sample corresponding to an integrated luminosity of 0.33 fb-1. The tau candidates were identified from their decays into electrons, muons or hadronic jets. The number of tau-pair candidates has been compared with the prediction from the Standard Model, where th ... More
Presented by Mr. Masaki ISHITSUKA on 5 Jul 2012 at 17:00
Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13
Track: Track 13. Detectors and Computing for HEP
Charged leptons play an important role in the physics programme at the LHC. The performance of identification of charged leptons must be know with high precision. This talk present the studies of the muon and tau identification performance at the ATLAS experiment. In 2012 the LHC is operated in a mode leading to up to 40 inelastic pp collisions per bunch crossing, so-called ”pile-up”, with ... More
Presented by Dr. Mansoora SHAMIM on 6 Jul 2012 at 11:15
Session: TR 12 - Formal Theory Development & TR 1 - The Standard Model
Track: Track 12. Formal Theory Developments
I will describe models where dynamical supersymmetry breaking is triggered by monopole condensation. Low energy theory is described by O'Rafeartaigh models with spontaneously broken R-symmetry.
Presented by Prof. Yuri SHIRMAN on 5 Jul 2012 at 14:00
Type: Parallel Sessions Session: Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9
Track: Track 9. Heavy Ion Collisions
The ALICE experiment studies nucleus-nucleus collisions at the LHC in order to investigate the properties of QCD matter at extreme energy densities. The measurement of open charm and open beauty production allows to probe the mechanisms of heavy-quark propagation, energy loss and hadronization in the hot and dense medium formed in high-energy nucleus-nucleus collisions. In particular, in-medium en ... More
Presented by Dr. Andrea DAINESE on 5 Jul 2012 at 09:45
Type: Parallel Sessions Session: TR4 - Top Quark Physics
Track: Track 4 - Top Quark Physics
A theory review of the latest results for TTbar spin correlations for both quark-antiquark annihilation and gluon-gluon fusion production modes will be given with implications for measurements at both the Tevatron and the LHC. I will comment on the recent measurements made by CDF, D0 as well as Atlas and CMS.
Presented by Dr. Stephen PARKE
Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10
Track: Track 1 - The Standard Model and EW Symmetry Breaking - Higgs Searches
We present a set of new results in tau-lepton physics using the full BABAR data set. This includes a new limit on the branching fraction of the isospin-forbidden, second-class-current decay tau --> pi eta'(958) nu_tau; a first study of high-multiplicity tau decays with charged kaons; and measurements of the branching fractions of 3- and 5-prong tau decays. Using the full BABAR dataset, we measu ... More
Presented by Prof. Soeren Andre PRELL on 7 Jul 2012 at 10:15
Type: Poster Sessions Session: Poster Session
Track: Track 13. Detectors and Computing for HEP
CMS has developed sophisticated tau identification algorithms for tau hadronic decay modes. Production of tau lepton decaying to hadrons are studied at 8 TeV centre of mass energy with 2012 collision data collected by CMS detector and has been used to measure the performance of tau identification algorithms by measuring identification efficiency and mis-identification rates from electrons, muons, ... More
Presented by Mr. Raman KHURANA on 7 Jul 2012 at 18:00
Type: Poster Sessions Session: Poster Session
Track: Track 3 - BSM - Non-SUSY Exotics
Lepton charge asymmetry, LHC analog of the forward-backward asymmetry of the Teavtron, can be an useful tool to probe new physics that "hides-out" from the dilepton invariant mass distribution due to large SM background in the tail region. To demonstrate how sensitive it can be to the new physics models, we will consider example of models which may or "may not" leave their imprints in the dilepton ... More
Presented by Dr. Sudhir Kumar GUPTA on 7 Jul 2012 at 18:00
Presented by Dr. Teppei KATORI on 10 Jul 2012 at 14:30
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
We present a tetraquark interpretation of the charged bottomonium-like states $Z^\pm_b(10610)$ and $Z^\pm_b(10650)$, observed by the Belle collaboration in the $\pi^\pm \Upsilon(nS)$ $(n=1,2,3)$ and $\pi^\pm h_b(mP)$ $(m=1,2)$ invariant mass spectra from the data taken near the peak of the $\Upsilon(5S)$. In this framework, the underlying processes involve the production and decays of a vector tet ... More
Presented by Dr. Wei WANG on 5 Jul 2012 at 11:00
Type: Poster Sessions Session: Poster Session
Track: Track 6. QCD, Jets, Parton Distributions
We calculate the cross sections and final state distributions for the processes e^+ e^- -> Upsilon(1S) (pi^+ pi^-, K^+ K^-, eta pi^0) near the Upsilon(5S) resonance based on the tetraquark hypothesis. This framework is used to analyse the data on the Upsilon(1S) pi^+ pi^- and Upsilon(1S) K^+ K^- final states, yielding good fits. Dimeson invariant mass spectra in these processes are shown to be dom ... More
Presented by Dr. Satoshi MISHIMA on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: TR4 - Top Quark Physics
Track: Track 4 - Top Quark Physics
The top quark is the heaviest known elementary particle and its mass is a free parameter of the Standard Model. The CDF and D0 collaborations have previously measured the top quark's mass using the top quark pairs produced at the Tevatron proton-antiproton collider in many decay channels. We present here the combination of all published measurements with an integrated luminosity up to 5.8 fb^-1 us ... More
Presented by Dr. Frederic DELIOT on 5 Jul 2012 at 14:30
Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13
Track: Track 13. Detectors and Computing for HEP
The ATLAS DAQ/HLT system reduces the Level 1 rate of 75 kHz to a few kHz event build rate after Level 2 and a few hundred Hz out output rate to disk. It has operated with an average data taking efficiency of about 94% during the recent years. The performance has far exceeded the initial requirements, with about 5 kHz event building rate and 500 Hz of output rate in 2012, driven mostly by physics r ... More
Presented by Dr. Reiner HAUSER on 6 Jul 2012 at 14:55
Type: Poster Sessions Session: Poster Session
Track: Track 13. Detectors and Computing for HEP
Events with muons in the final state are an important signature for many physics topics at Large Hadron Collider (LHC), for instance, searches for Higgs boson production or new phenomena, measurements on the standard model processes like top-quark, W, Z production. Thus, efficient trigger on muons in data taking and understanding its performance are crucial to perform these physics studies. At LH ... More
Presented by Dr. Takashi KUBOTA on 7 Jul 2012 at 18:00
Type: Poster Sessions Session: Poster Session
Track: Track 13. Detectors and Computing for HEP
Tau leptons play an important role in the physics program at the LHC. They are used not only in searches for new phenomena like the Higgs boson or Supersymmetry and electroweak measurements but also in detector related studies like the determination of the missing transverse energy scale. Optimal identification of hadronically decaying tau leptons is achieved by using detailed informatio ... More
Presented by Mr. Kong Guan TAN on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13
Track: Track 13. Detectors and Computing for HEP
During the data taking period from 2009 until 2011, the ATLAS trigger has been very successfully used to collect proton-proton data at LHC centre-of-mass energies between 900 GeV and 7 TeV. The three-level trigger system reduces the event rate from the design bunch-crossing rate of 40 MHz to an average recording rate of about 300 Hz. Using custom electronics with input from the calorimeter and muo ... More
Presented by Dr. Brian PETERSEN on 6 Jul 2012 at 14:20
Type: Poster Sessions Session: Poster Session
Track: Track 13. Detectors and Computing for HEP
With the high luminosities of proton-proton collisions achieved at the LHC, the strategies for triggering have become more important than ever for physics analysis. The naïve inclusive single tau lepton triggers now suffer from severe rate limitations. To allow for a large program of physics analyses with taus, the development of topological triggers that combine tau signatures with other measure ... More
Presented by Mr. Curtis William BLACK on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 14. Future Accelerators
The Neutrino Factory produces high-energy neutrino beams with a well-defined flavour content and energy spectrum from the decay of intense, high-energy, stored muon beams to establish CP violation in the neutrino sector. The International Design Study for the Neutrino Factory (the IDS-NF) will provide a Reference Design Report (RDR) for the facility. The present baseline design has been re-evalu ... More
Presented by Dr. Paul SOLER JERMYN on 7 Jul 2012 at 12:15
Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11
Track: Track 11. Particle Astrophysics and Cosmology
In pangenesis, the baryon asymmetry of the universe and the dark matter abundance are generated simultaneously via the Affleck-Dine mechanism. This talk will discuss the Affleck-Dine dynamics, both for the case of gravity- and gauge-mediated supersymmetry breaking. Cosmological constraints on the scenario, in particular arising from the production of gravitinos and the formation of Q-balls, will ... More
Presented by Dr. Benedict VON HARLING on 6 Jul 2012 at 09:15
Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219
Track: Track 8. Neutrinos
Liquid argon time projection chambers provide an extraordinary level of information about the interactions of neutrinos. There are several different efforts ongoing at Fermi National Accelerator Laboratory to develop the liquid argon detector technology and utilize it to study neutrino interactions. Among these are the Argon Neutrino Teststand, or ArgoNeuT, project and the MicroBooNE experiment. ... More
Presented by Prof. Mitchell SODERBERG on 5 Jul 2012 at 14:30
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 14. Future Accelerators
The Compact Linear Collider (CLIC) project explores the possibility of constructing a future multi-TeV linear electron-positron collider. The CLIC-concept is based on high gradient normal-conducting accelerating structures. The RF power for the acceleration of the colliding beams is produced by a novel two beam acceleration scheme, where power is extracted from a high current drive beam that runs ... More
Presented by Prof. Steinar STAPNES on 6 Jul 2012 at 09:00
Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13
Track: Track 13. Detectors and Computing for HEP
The CMS experiment has been designed with a 2-level trigger system: the Level 1 Trigger, implemented using FPGA and custom ASIC technology, and the High Level Trigger (HLT), implemented running a streamlined version of the CMS offline reconstruction software on a cluster of commercial rack-mounted computers, comprising thousands of CPUs. The design of a software trigger system requires a tradeoff ... More
Presented by Dr. Stéphanie BEAUCERON on 6 Jul 2012 at 14:40
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 13. Detectors and Computing for HEP
The luminosity upgrade of the KEKB accelerator towards SuperKEKB opens up new possibilities for physics at the intensity frontier. SuperKEKB will provide an instantaneous luminosity of 8x10^35 1/cm2/s which allows to increase the integrated luminosity of 1ab-1 achieved at the BELLE detector towards 50 ab-1 at BELLE II. The increased luminosity poses challenges to all subsystems like DAQ, trigg ... More
Presented by Dr. Stefan; on behalf of the DEPFET collaboration RUMMEL on 7 Jul 2012 at 16:15
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 13. Detectors and Computing for HEP
While the current focus is on the LHC at CERN, in the current period several important and unique experimental programs at other facilities are coming to an end, including those at HERA, b-factories and the Tevatron. However, until recently no coherent strategy existed for data preservation and re-use, and many important and complex past data sets have simply been lost. To address this problem, ... More
Presented by Dr. David SOUTH on 7 Jul 2012 at 13:45
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 11. Particle Astrophysics and Cosmology
The Dark Energy Survey Collaboration will soon begin a 5000 sq. deg. imaging survey of the southern galactic cap using a new 3 sq. deg., 520 Megapixel CCD camera, the Dark Energy Camera (DECam), with 5 filters (g,r,i,z and Y) mounted on the Blanco 4-meter telescope at the Cerro-Tololo Inter-American Observatory. Construction of DECam is complete, and installation and commissioning on the telesco ... More
Presented by Dr. Marcelle SOARES-SANTOS on 6 Jul 2012 at 16:00
Type: Parallel Sessions Session: TR 6 - RM 217 - QCD, Jets, Parton Distributions
Track: Track 6. QCD, Jets, Parton Distributions
We study the behavior of the underlying event in proton-antiproton collisions at 300 GeV, 900 GeV, and 1.96 TeV using charged particles measured by the CDF detector. The charged particle density and the scalar PTsum density in the transverse region as defined by the leading charged particle, PTmax, are examined as a function of PTmax at the three center-of-mass energies. The data at 300 GeV and ... More
Presented by Prof. Richard Dryden FIELD on 5 Jul 2012 at 15:15
Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11
Track: Track 11. Particle Astrophysics and Cosmology
The Fermi Large Area Telescope (LAT) has been operating since June 2008 and observes the gamma-ray sky from 20 MeV to over 300 GeV. The first four years of the LAT era have seen numerous exciting scientific results, some expected and others unexpected. In this talk I will discuss the current state of our understanding of the gamma-ray sky. In particular, I will describe how the Fermi-LAT has i ... More
Presented by Dr. Eric CHARLES on 7 Jul 2012 at 17:15
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 14. Future Accelerators
Fermilab’s high intensity future is “Project-X” which is a US led initiative with strong international participation that aims to realize a next generation proton source that will dramatically extend the reach of Intensity Frontier research. The state of the art in Super-Conducting RF has advanced to a point where it can be considered and implemented as the core enabling technology for a n ... More
Presented by Dr. Young-Kee KIM on 7 Jul 2012 at 11:45
Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219
Track: Track 8. Neutrinos
We propose the Hyper-Kamiokande (Hyper-K) detector as a next generation underground water Cherenkov detector. It will serve as a far detector of a long baseline neutrino oscillation experiment envisioned for the upgraded J-PARC, and as a detector capable of observing -- far beyond the sensitivity of the Super-Kamiokande (Super-K) detector -- proton decays, atmospheric neutrinos, and neutrinos from ... More
Presented by Dr. Hiroyuki SEKIYA on 5 Jul 2012 at 16:15
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 13. Detectors and Computing for HEP
The ILD detector concept is a proposal for a detector at an electron – positron linear collider, in particular the international linear collider, ILC. It has been conceived as an experiment optimized for precision physics in the comparatively clean environment of electron positron collisions. The particle flow concept has played a central role in the overall optimization of the concept, which is ... More
Presented by Dr. Tomohiko TANABE on 7 Jul 2012 at 16:50
Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219
Track: Track 8. Neutrinos
The KATRIN experiment aims at a direct and model independent determination of the neutrino mass with 200 meV sensitivity (90% C.L.) via a measurement of the endpoint region of the tritium beta-decay spectrum. The main components of the experiment are a windowless gaseous tritium source (WGTS), differential and cryogenic pumping sections and a tandem of a pre- and a main-spectrometer, applying the ... More
Presented by Dr. Volker HANNEN on 5 Jul 2012 at 10:15
Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13
Track: Track 13. Detectors and Computing for HEP
The LHCb experiment is designed to perform high-precision measurements of CP violation and search for New Physics using the enormous flux of beauty and charmed hadrons produced at the LHC. The operation and the results obtained from the data collected in 2010 and 2011 demonstrate that the detector is robust and functioning very well. However, the limit of ~1 fb-1 of data per year cannot be overcom ... More
Presented by Prof. Franz MUHEIM on 6 Jul 2012 at 16:00
Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11
Track: Track 11. Particle Astrophysics and Cosmology
The LHCf experiment has performed dedicated measurement of neutral particles in the very forward of LHC p-p collisions. The results in inclusive single photon spectra at 7TeV and 900GeV p-p collisions, and the pi0 transverse spectra at 7TeV p-p are presented with comparison of various hadron interaction models used for UHECR shower simulations. Also prospects in the 2012 p-Pb runs at LHC and pos ... More
Presented by Prof. Yoshitaka ITO on 7 Jul 2012 at 15:00
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 13. Detectors and Computing for HEP
The Conceptual Design Report for the Large Hadron Electron Collider has recently been released. This contribution summarises the part of the report covering design concepts for a new detector, which combines the demands of very high precision with those of large acceptance into a novel device for electron-proton physics at TeV energies. The physics and technical requirements, choices of detector t ... More
Presented by Dr. Alessandro POLINI on 7 Jul 2012 at 15:15
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 13. Detectors and Computing for HEP
The International Muon Ionization Cooling Experiment (MICE) will carry out a systematic investigation of ionization cooling of a muon beam, for the future Neutrino Factory and the Muon Collider. As the emittance measurement will be done on a particle-by-particle basis, a sophisticated beam instrumentation is needed to measure both particle coordinates and timing vs RF in a harsh environment due to ... More
Presented by Dr. Paul SOLER JERMYN on 7 Jul 2012 at 15:30
Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219
Track: Track 8. Neutrinos
What is the origin of the observed fermion masses and mixing parameters? Neutrinos, with their small mass and large mixing, contribute an important part of this flavour puzzle. We discuss new developments regarding the flavour puzzle in the light of the recent discovery of comparatively large leptonic mixing theta_13. The new developments include the possibility to explain the observed value of th ... More
Presented by Prof. Stefan ANTUSCH on 5 Jul 2012 at 17:00
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 13. Detectors and Computing for HEP
The ATLAS experiment has collected more than 5 fb-1 of data in 2011 at the energy of 7 TeV. Several billions of events had been promptly reconstructed and stored in the ATLAS remote data centers spanning tens of petabytes of disk and tape storage. In addition, a similar amount of data has been simulated on the Grid to study the detector performance and efficiencies. The data processing and distrib ... More
Presented by Dr. Ikuo UEDA on 7 Jul 2012 at 14:30
Type: Parallel Sessions Session: Room 218 - Future Accelerators - Detectors and Computing for HEP - TR14&13
Track: Track 13. Detectors and Computing for HEP
The SiD Detector is one of the two validated concepts for experiments at the future International Linear Collider. The SiD detector concept has been used to perform physics and benchmark studies at a 500 Gev ILC and a 3TeV CLIC electron positron collider. SiD is a highly performant, compact, cost-constrained, detector design. It is designed to make precision measurements and be sensitive to a wide ... More
Presented by Prof. Andy WHITE on 7 Jul 2012 at 16:30
Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219
Track: Track 8. Neutrinos
In 2004, two of us published a texture, the `Simplest'' neutrino mass matrix, which predicted $\sin{\theta_{13}}=\sqrt{2\Delta m^2_{sol}/3\Delta m^2_{atm}}$ and large $\delta_{CP}$. Using today's measured values for neutrino mass-squared differences, this prediction gives $\sin^2\! 2{\theta_{13}}\simeq 0.086^{+0.003}_{-0.006}$, compared with a measured value, found by averaging the results of th ... More
Presented by Prof. Paul Fraser HARRISON on 5 Jul 2012 at 17:30
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
The recently measured direct CP asymmetries in the processes D^0 -> pi^+ pi^- and D^0 -> K^+ K^- show a significant deviation from the naive Standard Model expectation. Using a general parameterization of the decay amplitudes, we show that the measured branching ratios imply large SU(3) breaking and large violations of the naive 1/N_c counting. Furthermore, rescattering constrains the I=0 amplitud ... More
Presented by Dr. Satoshi MISHIMA on 5 Jul 2012 at 16:00
Type: Parallel Sessions Session: Room 220 Lattice QCD / B-Physics / CP Violation, etc -TR5&7&10
Track: Track 10. Lattice QCD
It is a remarkable fact that an interaction as weak as QED can sustain bound states. A similar feature naturally can also be expected for the weak interactions. In fact, it has been conjectured in the late seventies that to leading order in an expansion in the Higgs condensate such bound states will have the same mass as the corresponding elementary particle at tree level. Using non-perturbative n ... More
Presented by Dr. Axel MAAS on 6 Jul 2012 at 09:00
Type: Parallel Sessions Session: TR5 & TR7 - Room 220 - B Physics and CP Violation, etc.
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
With the world largest data samples taken at J/psi, psi', and psi'' peaks with the BESIII detector at the BEPCII e+e- collider. The charmonium spectroscopy and charmonium decay dynamics are studied. We report new measurements of the resonant parameters of the spin-singlet states, eta_c, eta_c', and h_c, and their production rates in psi' transitions; we also report observations of many new decay m ... More
Presented by Prof. Shan JIN on 5 Jul 2012 at 14:15
Presented by Rolf HEUER on 6 Jul 2012 at 09:00
Type: Poster Sessions Session: Poster Session
Track: Track 13. Detectors and Computing for HEP
The branching ratio (BR) for the decay K^+ \to \pi^+\nu\bar{\nu} is a sensitive probe for new physics. The NA62 experiment at the CERN SPS will measure this BR to within about 10%. To reject the dominant background from channels with final state photons, the large-angle vetoes (LAVs) must detect photons with energies as low as 200 MeV with an inefficiency of less than 10^{-4}, as well as provide e ... More
Presented by Cristina BIINO on 7 Jul 2012 at 18:00
Type: Poster Sessions Session: Poster Session
Track: Track 7. CP Violation, CKM, Rare Decays, Meson Spectroscopy
We use the light fornt quark model in order to improve the theoretical prediction of the transition form factor of pi^{0} (eta(')) to gamma^* gamma as a function of the momentum transfer Q^2. We compare our result with the experimental data by BaBar as well as other calculations based on the LFQM. We show that our predicted form factor fits well with the experimental data, particularly tho ... More
Presented by Dr. Chong Chung LIH on 7 Jul 2012 at 18:00
Type: Parallel Sessions Session: Room 219 - Beyond the Standard Model SUSY / Non-SUSY - TR2&3
Track: Track 3 - BSM - Non-SUSY Exotics
Energy frontier searches are continuing to search for signs that set a scale for physics BSM. SuperB is able to measure a broad spectrum of observables that can be used to constrain parameters in the theory of any physics BSM found in the coming years at the LHC. In the event that no discoveries are made, one can use the same observables to constrain both parameter and model space. Deviations ... More
Presented by Prof. David HITLIN on 6 Jul 2012 at 17:15
Type: Parallel Sessions Session: TR 8 - Neutrinos RM 219
Track: Track 8. Neutrinos
With the recent discovery of a non-zero value of the neutrino mixing angle $\theta_{13}$, the NuMI Off-Axis $\nu_e$ Appearance (NO$\nu$A) long baseline neutrino oscillation experiment, currently under construction, has unique sensitivity to both the CP-violating neutrino mixing phase and the neutrino mass-hierarchy. Beyond NO$\nu$A, the proposed Long-Baseline Neutrino Experiment (LBNE) is designe ... More
Presented by Dr. Jonathan PALEY on 5 Jul 2012 at 16:00
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 11. Particle Astrophysics and Cosmology
KIMS (Korea Invisible Mass Search) experiment has run its 100kg setup for last three years. We have given a new WIMP interaction rates for spin-independent and spin-dependent limits with 24524 kgdays data. We have further analyzed for the annual modulation amplitude with the last 3 years data. An analysis will be presented which has a limit comparable to DAMA's modulation amplitude. We have recent ... More
Presented by Prof. Yeongduk KIM on 6 Jul 2012 at 17:15
Type: Parallel Sessions Session: Room 218 - Detectors and Computing for HEP - TR13
Track: Track 13. Detectors and Computing for HEP
The present CMS pixel detector was designed for a maximum luminosity of 1×1034 cm−2s−1. Following the Phase 1 upgrade of the LHC, the peak luminosity is foreseen to reach 2×1034 cm−2s−1. Due to the radiation damage and large data losses in the readout chip the present pixel system must be replaced by a new one in the long shutdown of 2016. The current status of the CMS pixel detector upg ... More
Presented by Mr. Ferdinando GIORDANO on 6 Jul 2012 at 17:05
Type: Parallel Sessions Session: Room 216 - Particle Astrophysics and Cosmology -TR11
Track: Track 11. Particle Astrophysics and Cosmology
The anomalous part of the cosmic electron-positron flux can be isolated within a Bayesian likelihood analysis. From the cosmic ray data the values of relevant cosmic ray propagation parameters can be also be inferred. I show how a tension arises between various cosmic ray datasets indicating an e+/e- anomaly. Then I show how to calculate the anomalous part of the PAMELA and Fermi-LAT measuremen ... More
Presented by Prof. Csaba BALAZS on 7 Jul 2012 at 12:30
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 4 - Top Quark Physics
We investigate the prospects for the discovery of a top quark decaying into one light Higgs boson along with a charm quark in top quark pair production at the CERN Large Hadron Collider (LHC). A general two Higgs doublet model is adopted to study the signature of flavor changing neutral Higgs interactions for $t \to c\phi^0$ or $\bar{t} \to \bar{c}\phi^0$ where $\phi^0$ is a CP-even scalar ($H^0$ ... More
Presented by Prof. Chung KAO on 6 Jul 2012 at 15:00
Type: Plenary Sessions Session: Tevatron Higgs Search Update / Top Quark Physics
Track: Plenary Sessions
Presented by Prof. Thomas MULLER on 9 Jul 2012 at 11:30
Type: Parallel Sessions Session: TR4 - Top Quark Physics
Track: Track 4 - Top Quark Physics
The top quark is the heaviest particle of the Standard Model and, thus, the particle most strongly coupled to the physics of electroweak symmetry breaking. A future linear e+e- collider will be able to make precision measurements of the top quark mass and width, of the detailed QCD physics of the top quark threshold, and of the top quark production and decay asymmetries. Both measurements at the ... More
Presented by Dr. Marcel VOS on 5 Jul 2012 at 14:45
Type: Plenary Sessions Session: Tevatron Higgs Search Update / Top Quark Physics
Track: Plenary Sessions
Presented by Dr. Gilad PEREZ on 9 Jul 2012 at 12:00
Type: Parallel Sessions Session: Room 216 - Top Quark Physics / Particle Astrophysics & Cosmology - TR4 & TR11
Track: Track 4 - Top Quark Physics
The CDF and D0 experiments have reported measurements of the top quark forward-backward asymmetry A_{FB} which are (2.5-3.5) sigma away from the standard model predictions. In this talk it will be shown that this anomaly can be explained by new physics that arises when the flavor symmetry of the standard model is gauged in a maximal way. The flavor gauge symmetry would provide an understanding o ... More
Presented by Prof. Kaladi S. BABU on 6 Jul 2012 at 10:00
Type: Parallel Sessions Session: TR4 - Top Quark Physics
Track: Track 4 - Top Quark Physics
The top-quark mass is an important parameter of the standard model. It is used, along with the W boson mass, to constrain the mass of the predicted Higgs boson. We present measurements of the top-quark mass and of the top-antitop mass difference, which tests the CPT symmetry, in the semi-leptonic top-quark pair decay channel using the template method and the full CDF Run II sample. These are curre ... More
Presented by Dr. Hyun Su LEE on 5 Jul 2012 at 14:00
Type: Parallel Sessions Session: TR4 - Top Quark Physics
Track: Track 4 - Top Quark Physics
Precision measurements are presented of the top-pair production cross sec