Carlotta Favaro
(Universitaet Zuerich (CH))
21/03/2012, 17:00
The production of b quark pairs in association with a Z/gamma* boson was studied at the CMS experiment using pp collision data collected in 2011. The normalized production cross section as function of the B hadron angular separation is compared with QCD predictions at tree-level and NLO accuracy. The identification of displaced secondary vertices is made with no use of jets, which allows to...
Jane Theresa Cummings
(Yale University (US))
21/03/2012, 17:00
Ludivine Ceard
(Universite Catholique de Louvain (BE))
21/03/2012, 17:00
A measurement of the Z/γ* + b(b) cross section is performed with the CMS detector in pp collissions at the LHC. The study has been done with a data sample from 2011 corresponding to an integrated luminosity of 2.1/fb.
The Z+bb and Z+b production rates are presented together with some of the key kinematic variables.
Jan Welti
(Helsinki Institute of Physics (FI))
21/03/2012, 17:01
The method for determining the inelastic rate for the luminosity independent cross section measurement will be presented. Main points include descriptions of corrections applied to the measured raw event rate as well as preliminary quantitative results.
Mr
Tim Martin
(University of Birmingham (GB))
21/03/2012, 17:01
Pseudorapidity gap distributions in pp collisions at sqrt(s) = 7 TeV are studied using a minimum bias data sample. We present the total inelastic cross section as a function of Delta eta F, the larger of the pseudorapidity regions extending to the limits of the ATLAS sensitivity, at eta = +-4.9, in which no final state particles are produced above a transverse momentum threshold pT cut. The...
Jan Kaspar
(Division Elementary Particle Phys.-Institute of Physics-Acad. o)
21/03/2012, 17:01
TOTEM's recent results on differential elastic and total cross section of proton-proton scattering at the energy of 7 TeV.
Christopher John Meyer
(University of Chicago (US))
21/03/2012, 17:01
A brief summary of standard model jet measurements made in the ATLAS detector. The 2010 data, corresponding to an integrated luminosity of 37 pb−1, and 2011 data, corresponding to an integrated luminosity of 4.8 fb-1, were used to probe perturbative quantum-chromodynamics. Inclusive jet cross sections, dijet mass cross sections, dijet production with a veto on additional central jet activity,...
Michal Broz
(Comenius University (SK))
21/03/2012, 17:02
We present results on strangeness production in p+p collisions at different LHC energies (√s = 900GeV and 7 TeV). In particular, the rapidity and transverse momentum dependence of the antiLambda/Lambda, AntiXi+/Xi- and AntiOmega+/Omega- ratios will be shown
Gian Michele Innocenti
(Universita e INFN (IT))
21/03/2012, 17:02
We will present the pt-differential cross section of Ds mesons in pp collisions at 7 TeV
measured in the central rapidity region of the ALICE experiment.
The status of the Pb-Pb analysis at 2.76 TeV will also be discussed
Alice Florent
(Ecole Polytechnique (FR))
21/03/2012, 17:02
Electroweak boson production is an important benchmark process at hadron colliders. Precise measurements of W and Z production in heavy-ion collisions can help to constrain nuclear PDFs as well as serve as a standard candle of the initial state in PbPb collisions at the LHC energies. The analysis and selected results of W and Z production in PbPb collisions at $\sqrt{s_{NN}} = 2.76$ TeV will presented.
Igor Lakomov
(Universite de Paris-Sud 11 (FR))
21/03/2012, 17:02
We present the measurement of the production yields of J/psi in Pb-Pb collisions measured with their muon decays at forward rapidities in ALICE (2.5 < y < 4) in different collision centrality windows. The results are compared to the inclusive production cross-sections in p-p collisions and the nuclear modification factor is discussed.
Yetkin Yilmaz
(Massachusetts Inst. of Technology (US))
21/03/2012, 17:02
CMS has performed several measurements on the phenomenon of parton energy loss in QGP. This poster combines the conclusion of the jet based measurements.
Tomas Kosek
(Charles University (CZ))
21/03/2012, 17:02
Rongrong Ma
(Yale University (US))
21/03/2012, 17:02
We present the performance and unique capabilities at the LHC of the ALICE detector in the jet reconstruction for proton-proton collisions complemented with an outlook for jet measurements in high background environment of heavy-ion collisions
Mihee Jo
(Korea University (KR))
21/03/2012, 17:02
CMS has measured the nuclear modification factors of non-prompt J/psi (from b-hadron decays) and prompt J/psi in PbPb collisions at $\sqrt{s_{NN}} = 2.76$ TeV. For prompt J/psi with relatively high pt (pt=6.5-30 GeV/c), a strong, centrality-dependent suppression is observed in PbPb collisions, compared to the yield in pp collisions scaled by the number of inelastic nucleon-nucleon collisions....
Pat Kenny
(University of Kansas (US))
21/03/2012, 17:02
Transverse energy measurements offer insight into the dynamics of heavy ion collisions and the total entropy created. At very forward pseudorapidities they may also be sensitive to the low momentum components of the nuclear wave-function. CMS has almost hermetic calorimetry coverage with fine granularity and excellent resolution. In this poster the transverse energy measurements from 2.76 TeV...
Zhen Hu
(Purdue University (US))
21/03/2012, 17:02
The poster summarizes the measurements done by the CMS experiment on the various states of the Upsilon particle in PbPb collisions, compared to pp collisions. The results serve as a thermometer for the QCD matter created in the collisions, at extreme energy density.
Michael Linus Knichel
(GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))
21/03/2012, 17:02
Transverse momentum spectra of primary charged particles in Pb-Pb collisions measured with ALICE will be presented and compared to inelastic pp collisions in terms of RAA. The evolution of RAA as a function of collision centrality will be presented. Calculations from in-medium parton energy loss models will be compared to the measured RAA.
Dr
Maria Zangoli
(INFN and Università di Bologna (IT))
21/03/2012, 17:03
The LHCb experiment is designed to perform flavour physics measurements at the Large Hadron Collider. Using a data sample corresponding to an integrated luminosity of 0.35 fb$^{-1}$ collected by LHCb in 2011, we report measurements of the direct CP asymmetries in the $B^0\to K^+\pi^-$ and $B_s^0\to \pi^+K^-$ decays. The results obtained represent the first evidence of CP violation in the...
Joel Bressieux
(Ecole Polytechnique Federale de Lausanne (CH))
21/03/2012, 17:03
In this poster, we present the narrow J/ψφ resonances X(4140) and X(4274) search as well as the X(3872) mass and productions cross-section measurements. These analysis have been done using pp collisions data collected at LHCb.
Gregory Max Ciezarek
(Imperial College Sci., Tech. & Med. (GB))
21/03/2012, 17:03
A search for the decay B+ to pi mu mu is presented using 1.0~fb$^{-1}$ of pp collision data integrated luminosity collected with the LHCb experiment at the Large Hadron Collider during 2011.
This decay is observed for the first time with 5.2 $\sigma$ significance, at a branching fraction \BR(\pimumu) = (2.4~$\pm$~0.6~(stat)~$\pm$~0.2~(syst))$\times 10^{-8}$.
Livio Bianchi
(Universita e INFN (IT))
21/03/2012, 17:03
The first measurement of inclusive of J/psi polarization at the LHC was carried out in p-p collisions at √s = 7TeV, with the ALICE experiment. Reconstructing J/psi in the muon channel at forward rapidity (2.5 < y < 4), we have measured its polarization to be rather small, with a clearly finite value only for the lowest measured bin in transverse momentum, 2-3 GeV/c, in the helicity reference frame.
Ricardo Vazquez Gomez
(Depto. d' Estruc. i Cons. de la Mat-Facultad de Fisica-Universid)
21/03/2012, 17:03
We present the measurement of direct CP asymmetry in the decay B^0->K* gamma with the full 2011 dataset in LHCb. A comparison with the SM prediction, as well as previous results is given.
Zhou Xing
(Syracuse University (US))
21/03/2012, 17:03
Heavy quark production in 7 TeV pp collisions at the LHC need not be flavour symmetric. Here the production asymmetry, Ap , between Ds+ and Ds- mesons is measured using the phi pi decay mode. The difference between pi+ and pi- detection efficiencies is measured using the ratio of fully reconstructed to partially reconstructed D* decays. Using 1 fb^-1 of data collected with the LHCb detector,...
Markus Fasel
(GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))
21/03/2012, 17:03
We present the differential cross section of electrons from heavy-flavour hadron decays in pp collisions at √s = 7 TeV. Results are compared to FONLL pQCD calculations.
Sean Benson
(University of Edinburgh (GB))
21/03/2012, 17:03
An untagged, time-integrated analysis of the Bs -> phi phi decay has been performed with 1 fb-1 of pp collision data at centre-of-mass (COM) energy \sqrt{s} = 7 TeV taken using the LHCb detector. Optimised selections have yielded 801 Bs -> phi phi events at high signal to background ratio. This has allowed for measurements of polarisation amplitudes ($|A_0|^2$, $|A_\perp|^2$,...
Fiorella Fionda
(Universita e INFN (IT))
21/03/2012, 17:03
The ALICE experiment at the LHC has studied the J/psi production at mid-rapidity in pp collisions at sqrt(s) = 7 TeV through its electron pair decay. The fraction of J/psi from the decay of long-lived beauty hadrons was determined on a data sample corresponding to an integrated luminosity Lint = 5.6 nb−1 for J/psi candidates with transverse momentum pt > 1.3 GeV/c and rapidity |y| < 0.9. The...
Paolo Gandini
(University of Oxford (GB))
21/03/2012, 17:03
Christophe Cauet
(Technische Universitaet Dortmund (DE)), Mr
Tobias Brambach
(Technische Universitaet Dortmund (DE))
21/03/2012, 17:03
The results of the LHCb opposite side flavour tagging optimisation and calibration on the 2011 dataset are presented.
Candan Dozen
(Cukurova University),
Gul Gokbulut
(Cukurova University)
21/03/2012, 17:03
We present an overview of J/psi, psi' and Upsilon production cross-section measurements in pp collisions at sqrt(s) = 7 TeV in the CMS experiment. First results from the 1P charmonium state and the exotic X(3872) are also discussed.
Andrew Stephen Chisholm
(University of Birmingham (GB))
21/03/2012, 17:03
An observation of the chi_c and chi_b quarkonium states in proton-proton collision data at sqrt(s) = 7 TeV recorded by the ATLAS experiment is presented. The chi_c and chi_b states are reconstructed from their radiative decays to J/psi and Upsilon(1S,2S) respectively. In the charmonium sector, the chi_c1,2(1P) charmonium states are observed. This represents the first step towards more advanced...
Christoph Nageli
(Eidgenoessische Tech. Hochschule Zuerich (CH))
21/03/2012, 17:03
A search for the rare decays Bs to mu+mu- and Bd to mu+mu- is presented, performed with the CMS detector with an integrated luminosity of 5 fb^-1.
Hamish Gordon
(University of Oxford (GB))
21/03/2012, 17:03
A model-independent search for direct CP violation in the Cabibbo suppressed decay $D^+ \to K^-K^+\pi^+$ in a sample of approximately 370,000 decays is described. The normalized Dalitz plot distributions for $D^+$ and $D^-$ are compared using four different binning schemes that are sensitive to different manifestations of CP violation. No evidence for CP asymmetry is found.
Bakul Gaur
(Universitaet Siegen (DE)),
Elisa Musto
(Universita e INFN (IT))
21/03/2012, 17:03
The Bs0 -> μμ decay is a Flavour Changing Neutral Current process, highly suppressed in the Standard Model (SM). The small SM prediction of 3 x 10-9 might be substantially enhanced by coupling to new heavy particles. An analysis based on 2.4 fb−1 of integrated luminosity, using a multivariate, multi-bin selection method is presented. A limit of BR (Bs0 -> μμ) ≤ 2.2E-8 at 95% CL is obtained.
Frederic Dupertuis
(EPFL - Lausanne)
21/03/2012, 17:03
The determination of the CP-violating phase φs in B0s → J/ψφ 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 ∆Γs based upon 1fb−1 of data collected at LHCb during 2011.
Stefano Perazzini
(INFN Bologna (IT))
21/03/2012, 17:03
Using an integrated luminosity of 0.69 fb-1 collected by LHCb in 2011, we report measurements of direct and mixing-induced CP violation in $B^0\to\pi^+\pi^-$ and $B_s^0\to K^+K^-$ decays. The measurements of the B0p+p- asymmetries are compatible with those from the B factories and yield 3.2s evidence of mixing-induced CP violation, whereas the Bs0K+K- asymmetries are measured for the first time ever.
Christian Boser
(KIT - Karlsruhe Institute of Technology (DE))
21/03/2012, 17:04
We present the recent measurement of the ttbar charge asymmetry in a dataset corresponding to an integrated luminosity of 4.7/fb, collected with the CMS detector at the LHC. In addition to the inclusive measurement, for the first time at the LHC also differential measurements are performed.
Alberto Orso Maria Iorio
(Universita e INFN (IT))
21/03/2012, 17:04
We present a measurement of the single top t-channel inclusive cross section in proton-proton collisions at sqrt(s) = 7 TeV with the CMS detector at LHC considering decay channels with a muon or an electron in the final state, using data samples corresponding to an integrated luminosity of 1.14/1.51 inverse fb for the muon/electron channel. After a selection optimized for the t-channel,...
Pietro Vischia
(LIP Laboratorio de Instrumentacao e Fisica Experimental de Part)
21/03/2012, 17:04
We present a measurement of the top quark mass mtop in the dilepton decay channel tt ̄ → (l+νlb) (l−ν ̄lb ̄) in pp collisions at sqrt{s}=7 TeV. The data sample of the measurement corresponds to an integrated luminosity of 2.3 fb−1 collected with the CMS detector at the LHC. Events are selected by requiring two leptons, at least two jets and missing transverse energy. The mass is reconstructed...
Kiran Daniel Joshi
(University of Manchester (GB))
21/03/2012, 17:04
Francesco Rubbo
(Universitat Autònoma de Barcelona (ES))
21/03/2012, 17:04
Michael Andrew Segala
(Brown University (US))
21/03/2012, 17:04
Jet flavour tagging is one of the key ingredients of the diverse physics program of the CMS experiment.
Various flavour-taggers based on the lifetime and semileptonic decay of the heavy quarks have been implemented. They use jets, tracks, leptons and/or vertices. We exploit the \ttbar samples collected
at $\sqrt {s}=7$ TeV running of the LHC during the first half of 2011, to extract the...
Sarah Livermore
(University of Oxford (GB))
21/03/2012, 17:05
A search for resonant production of ttbar pairs with data collected in 2011 by ATLAS. The analyses presented here concentrate on the lepton + jets and fully leptonic final states, with datasets corresponding to a total integrated luminosity of 2.05 and 1.04 fb-1 respectively. Limits are set on the production cross-section times branching ratio to top quark pairs of resonances predicted by key...
Haichen Wang
(University of Wisconsin (US))
21/03/2012, 17:05
The search for a Higgs boson is one of the most important physics goals of the Large Hadron Collider program. The ATLAS experiment collected and analyzed the data corresponding to an integrated luminosity about 4.9 fb−1 for all Higgs boson search channels. A preliminary combination of Standard Model Higgs boson searches with the ATLAS experiment has been performed.
Joshua James Swanson
(University of Wisconsin (US))
21/03/2012, 17:05
A search for a neutral MSSM Higgs boson decaying into tau leptons using CMS is described. The analysis is sensitive in a large range of Higgs boson masses from 90 to 500 GeV.
Matthew Chan
(Massachusetts Inst. of Technology (US))
21/03/2012, 17:05
A search for the standard model Higgs boson decaying into tau leptons using CMS is described. The analysis is sensitive in a mass range
from 110 to 145 GeV. A description of the measurement of the tau identification efficiency for hadronic tau decays is given.
Cristina Botta
(Universita e INFN (IT))
21/03/2012, 17:05
We present the results of the search for a Standard Model Higgs boson in the 'golden' H->ZZ(*)->4l channel. A total of 4.7 fb-1 of 2011 data collected by the CMS detector is analyzed. No evidence of deviations from the Standard Model prediction is found, therefore a limit on its production cross-section is set.
Seyed Mohsen Etesami
(School of Particles and Accelerator Inst. for Res. in Fundam. S)
21/03/2012, 17:05
We present the results of a search for large extra spatial dimensions in events with dilepton final state using the 2/fb of data collected with the CMS detector at the LHC. The observed dilepton invariant mass distribution is found to be consistent with standard model expectation. Depending on the number of extra dimensions, limits are set on the onset of quantum gravity scale.
Yuya Azuma
(University of Tokyo (JP))
21/03/2012, 17:05
Mrs
Lea Gauthier
(CEA - Centre d'Etudes de Saclay (FR))
21/03/2012, 17:05
Samvel Khalatyan
(University of Illinois at Chicago (US))
21/03/2012, 17:05
A model-independent search is presented for the production of narrow heavy resonance with mass greater 1TeV decaying into top quark pairs in 7 TeV pp collisions at the LHC using 2011 data in the lepton+jets channel. In absence of evidence for a signal, we evaluate 95% C.L. upper limits on σ(pp → Z′ → t ̄t) · BR as a function of the invariant mass of the resonance.
Daniel Ventura
(University of Massachusetts, Amherst (US))
21/03/2012, 17:05
A search for the decay of a light Higgs (120 - 140 GeV) to a pair of weakly-interacting, long-lived particles in 1.94/fb of proton-proton collisions at √s = 7 TeV recorded in 2011 by the ATLAS detector is presented. The search strategy requires that both long-lived particles decay inside the muon spectrometer.
Daniel Cedric Troendle
(KIT - Karlsruhe Institute of Technology (DE))
21/03/2012, 17:05
A search for physics beyond the Standard Model using events with at least three leptons is described. Numerous exclusive channels are studied using data-driven techniques to quantify the SM backgrounds
26.
Search for supersymmetry in events with three leptons and missing transverse momentum with ATLAS
Julien de Graat
(LMU Munich)
21/03/2012, 17:05
A search for pair production of supersymmetric gauginos decaying into final states with three leptons and missing transverse momentum is presented. The analysis uses 2.1 fb-1 of 7 TeV proton-proton collision data delivered by the LHC and recorded with the ATLAS detector in 2011.
Loukas Gouskos
(University of Athens (GR))
21/03/2012, 17:05
A search for supersymmetry using single lepton events at CMS is presented. A lepton-projection variable, based on W-polarization, is used to discriminate the dominant backgrounds arising from top and W production.
Mr
Yi Chen
(California Institute of Technology (US))
21/03/2012, 17:05
A search is presented for new heavy particles using the razor variables. The search uses a mix of all-hadronic and leptonic samples to empirically model the various SM backgrounds. Constraints are placed on SUSY and exotic models.
Jared Sturdy
(University of California Riverside (US))
21/03/2012, 17:05
A search for supersymmetry using events with multijets and missing energy collected at CMS is presented. Backgrounds are evaluated using various data-driven techniques, and the results are interpreted within the context of the cMSSM as well as several simplified models.
Holger Von Radziewski
(Albert-Ludwigs-Universitaet Freiburg (DE))
21/03/2012, 17:05
Inclusive searches for neutral Higgs bosons h⁰/A⁰/H⁰→tau tau, based on
1.06 fb⁻¹, and for charged Higgs bosons H⁺→tau nu, based on 4.6 fb⁻¹ of
ATLAS pp-collision data, are discussed.
No excess is observed. Limits on production cross-section × branching
ratios are derived, and the findings are interpreted within the mhmax
scenario of the MSSM.
Mingming Yang
(Massachusetts Inst. of Technology (US))
21/03/2012, 17:05
A search for the standard model Higgs boson decaying into two
photons using CMS is described. The analysis is sensitive in a mass range
from 110 to 150 GeV. Multivariate analysis techniques have been deployed to
optimize the search.
Joseph David Price
(University of Liverpool (GB))
21/03/2012, 17:05
The search for the Standard Model Higgs boson via its decays into two Z bosons is presented, based on the 4.7-4.9 fb^{-1} of proton-proton collisions at a center-of-mass energy of 7 TeV, recorded in 2011 by the ATLAS experiment at the LHC.
The results obtained in the fully leptonic decay channel cover a wide range of Higgs boson mass hypotheses, between 110 GeV and 600 GeV. For Higgs boson...
Pierluigi Bortignon
(Eidgenoessische Tech. Hochschule Zuerich (CH))
21/03/2012, 17:05
This poster presents a direct search of the Higgs boson using a data sample of L=4.6 fb-1, recorded by CMS detector in pp collision at LHC at sqrs(s) = 7TeV. The analysis searches the Higgs boson, produced in association with a Z boson, in its decay to a bottom quark pair. The Zdecays in lepton and neutrinos pairs are considered in the analysis. The expected 95% upper limits are derived on the...
Nikoloz Skhirtladze
(University of Florida (US))
21/03/2012, 17:05
The results of a search for new physics in events with two same-sign isolated leptons (electrons, muons), hadronic jets, and missing transverse energy in the final state are presented. The analysis is based on a data sample corresponding to an integrated luminosity of 4.7 fb-1 collected by the CMS experiment at the LHC. The observed numbers of events agree with the Standard Model predictions...
Michael Ryan Mooney
(Princeton University (US))
21/03/2012, 17:05
This poster presents a direct search of the Higgs boson using a data sample of L = 4.6/fb, recorded by the CMS detector in pp collisions at the LHC with sqrt(s) = 7 TeV. The analysis searches for the Higgs boson, produced in association with a W boson, in its decay into a bottom quark pair. The expected 95% upper limits on the production cross section are evaluated in the Higgs mass range...
Javier Montejo Berlingen
(IFAE - Barcelona (ES)),
Nikiforos Nikiforou
(Columbia University (US))
21/03/2012, 17:07
Eleanor Lucy Davies
(University of Oxford (GB)),
Rui Wang
(University of New Mexico (US)),
Samah Abdel Khalek
(Universite de Paris-Sud 11 (FR))
21/03/2012, 17:07
This poster describes the performance of 2 parts of ATLAS:
- The Inner Detector which consists of 3 subdetectors: the Pixel detector, the SemiConductor Tracker (or SCT) and the Transition Radiation Tracker (or TRT).
Here, we report on Pixel detector and SCT performance over 2011.
- ALFA detector which will determine the absolute luminosity of the CERN LHC at the ATLAS Interaction Point...
George Iakovidis
(National Technical Univ. of Athens (GR)),
Lulu Liu
(University of Michigan (US))
21/03/2012, 17:07
During the 2011 LHC Data taking period the ATLAS Detector recorded 5.22 fb-1 which is 96.5% of the delivered data from proton-proton collisions. The recorded data with Muon Spectrometer was at a level of more than 99% good for physics analysis. This illustrates an excellent performance. Starting the 2012 data taking period the Muon Spectrometer will perform to more than 99% operational...
Marco Vanadia
(Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut) (D)
21/03/2012, 17:07
Muons are a key ingredient for many physics analyses in ATLAS. A measurement of the performance of the muon reconstruction and identification on LHC collisions recorded in 2011 is presented, with a particular focus on the effects of pile-up and a comparison with Monte-Carlo simulations.
Mr
Jinzhong Zhang
(Northeastern University (US))
21/03/2012, 17:07
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 of a lepton or combinations of these quantities to select samples of jets with different b purities.The performance of the algorithms in terms of efficiency and misidentification probability has been measured from...
Kevin Sapp
(University of Pittsburgh (US))
21/03/2012, 17:07
Chris Lester
(University of Pennsylvania (US))
21/03/2012, 17:07
Jean-Baptiste Sauvan
(Universite de Paris-Sud 11 (FR))
21/03/2012, 17:07
Guilbaud Maxime
(Univ. de Lyon, CNRS/IN2P3)
21/03/2012, 17:07
During the 2010 PbPb run, some collisions took place at different vertex location with respect to the nominal one in all LHC experiments. A non-negligible number of those "satellite collisions" have been recorded by the ALICE experiment. Using a displaced vertex technique, the knowledge of the ALICE material budget and geometry have been improved.
Jennifer Lynn Godfrey
(SFU Simon Fraser University (CA))
21/03/2012, 17:07
Olivier Bondu
(Universite Claude Bernard-Lyon I (FR))
21/03/2012, 17:07
Radiative Z decays to pairs of muons, where one of the muons emits a Bremsstrahlung photon, can be used for numerous dedicated photon calibration and measurement purposes : they can be cleanly selected and their kinematics are well-constrained by the Z boson mass and the precision on the muon momenta. This poster presents three use cases, based on data recorded by the CMS experiment in 2010 and 2011.
Christoph Wasicki
(Deutsches Elektronen-Synchrotron (DE))
21/03/2012, 17:07
With an average number of up to 23 pile-up interactions per bunch crossing (μ) in 2011 data taking the ATLAS Inner Detector (ID) already reached its design specifications. This poster presents studies in data and simulation demonstrating that the ID track reconstruction is well-prepared for the high pile-up expected in 2012.
Alexandru Dan Sicoe
(CERN)
21/03/2012, 19:02
Bertrand Chapleau
(McGill University (CA))
21/03/2012, 19:02
Douglas Michael Schaefer
(University of Pennsylvania (US))
21/03/2012, 19:02
