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Philip David Rubin (George Mason University (US))13/06/2016, 09:00
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Dr David Wu (George Mason University)13/06/2016, 09:10
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Prof. Niels Madsen (Swansea University)
The ALPHA antihydrogen experiment studies antihydrogen as a means to investigate the symmetry of matter and antimatter. Spectoscopic studies of antihydrogen holds the promise of the most precise direct comparisons of matter and antimatter possible. The ALPHA experiment was the first to trap antihydrogen in a magnetic trap, allowing the first ever detection of atomic transitions in an...
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Fuquan Wang (University of Wisconsin-Madison Department of Physics)
The observation of excess gamma-gamma events with an invariant mass around 750 GeV.
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David Hutchcroft (University of Liverpool (GB))
The mechanisms behind baryonic decays of heavy flavoured particles remain mysterious and challenging to describe theoretically. Amongst interesting features observed by previous experiments it is worth mentioning the suppression of branching fractions to two-body final states and threshold enhancements in higher multiplicity decays. The large data sample accumulated by the LHCb experiment...
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Agnieszka Oblakowska-Mucha (AGH University of Science and Technology (PL))
LHCb has collected the world's largest sample of beauty hadrons. This sample is used to search for new sources of CP violation, and to measure $B^0_{d/s}$ mixing parameters. We present a selection of recent measurements performed by the LHCb experiment using the full Run 1 dataset. Among these: the measurements of the mixing-induced CP-violating phase $\phi_s$ in the $B^0_s - \bar B^0_s$...
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A detector talk covering a system US institutions have played a large role in: VPI and Hawaii worked on the muon system upgrade.
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Jake Bennett
Physics prospects, status, and schedule for Belle II
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Saurabh SANDILYA (University of Cincinnati)
A detector talk covering a system US institutions have played a large role in: Cincinnati, Hawaii, PNNL, South Carolina, Pittsburgh, Mississippi, and Indiana worked on the barrel TOP detector.
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Christian Weiss (Jefferson Lab)
An Electron_Ion Collider (EIC) with center-of-mass energy 20-100 GeV (eN) and luminosity ~10^34 cm^{-2} s^{-1} is being developed as a future facility for high-energy nuclear physics in the U.S. and worldwide. It would enable novel studies in charm and beauty physics over a wide kinematic range, using both deep-inelastic electroproduction and photoproduction, at ~10^3 times the luminosity of...
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Angelo Carbone (University of Bologna and INFN (IT))
LHCb has collected the world's largest sample of charmed hadrons. This sample is used to search for direct and indirect CP violation in charm, and to measure neutral D-meson mixing parameters. New measurements from several decay modes are presented, with complementary time-dependent and time-integrated analyses.
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Peter Klaus Martin Weidenkaff (Physikalisches Institut-Ruprecht-Karls-Universitaet Heidelberg-U)
The BESIII Experiment at the Beijing Electron Positron Collider (BEPCII)
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has accumulated the world's largest e+e- collision samples at ψ(3770)
peak, around the ψ(4040) nominal mass, and at the Λc-pair mass threshold
which allow us to study decays of charmed mesons and baryons in a uniquely
clean background. In this talk, we will review our recent
results including: (1) the extractions of... -
Irina Nasteva (Univ. Federal do Rio de Janeiro (BR))
Charmless b-meson and b-baryon decays to pseudoscalar or vector mesons proceed via suppressed b—>u tree and b—>s,d penguin diagrams, and are sensitive probes of physics beyond the Standard Model. Relevant observables are branching fractions, CP asymmetries, polarisation fractions and T-odd correlations. Unexpected values of these observables have the potential to reveal New Physics. Moreover...
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Andrea Celentano (Universita e INFN Genova (IT))
The nature of Dark Matter is one of the prominent open-questions in physics at present: although gravitational observations proof that matter in our Universe is mainly made of DM, very little is known about it. While most of "traditional" DM experiments are designed and optimized to prove the weak-force mass scale, O(100 GeV), the light DM
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(LDM) region, O(10 MeV - 1 GeV) is, so far, almost... -
Alexey Luchinsky (Institute for High Energy Physics, Protvino, Russia)
Theory
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Rukmani Mohanta
The rare decays of B mesons involving flavor changing neutral current (FCNC) transitions
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b -> s, d, provide an excellent testing ground to look for new physics.
Although, so far we have not seen any clear indication of new physics in the b-quark sector, but there appears to be some kind of tension with the SM predictions in some b -> s penguin induced transitions. In particular, the recent... -
Dr Raul Briceno (JLab)
The non-perturbative nature of quantum chromodynamics (QCD), has historically left a gap in our understanding of the connection between the fundamental theory of the strong interactions and the rich structure of experimentally observed phenomena. For the simplest properties of stable hadrons, this is now circumvented by utilizing lattice QCD. In this talk I outline a path towards a rigorous...
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Biplab Dey (INFN Milano)
The LHCb experiment is designed to study properties and decays of heavy flavoured hadrons produced from pp collisions at the LHC. During Run-1, it has recorded the world’s largest data sample of beauty and charm hadrons, enabling precise spectroscopy studies of such particles. The discovery of the first pentaquark states and the first unambiguous determination of the Zc(4430) as an exotic...
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Tomasz Szumlak (AGH University of Science and Technology (PL))
The physics programme of the LHCb experiment has been expanded recently to new areas, notably including heavy ion data. In this talk we present measurements of heavy flavour production in pp collision at various centre-of-mass energies. These results are important inputs for QCD effective models predicting the production cross-sections and polarisations of heavy flavoured hadrons. Furthermore,...
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Ms Maria Cerdà Sevilla (Department of Mathematical Sciences, University of Liverpool)
The quantity ε'/ ε measures direct CP violation in Kaon decays. Recent analysis of this ratio did result in a 2.9 sigma discrepancy between the Standard Model predictions and the experimental data. Our ability to observe or constrain New Physics depends on the accuracy of determining the SM ”background”, so precise evaluation of ε'/ ε in this framework is particularly important. In this talk I...
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Anjan Giri (IIT Hyderabad)
The results from B factories provided the confirmation of the Cabibbo-Kobayashi-Maskawa mechanism of CP violation in the framework of the standard model. LHCb has also started contributing in this direction and all the results obtained so far are in agreement with the standard model (SM) expectations and there is no clear sign/ indication of physics beyond the SM, even though there are few...
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Mihail Antoniu Iliescu (I)
The dynamics of the strong interaction processes in the non-perturbative regime is currently described by lattice calculations and effective field theories (ChPT), still lacking several experimental results, fundamental for reaching a good understanding of the strangeness sector. Among these, the information provided by the low-energy kaon nucleon/nuclei interaction, accessible through the...
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Joanna Zalipska (National Centre for Nuclear Research)
The T2K long-baseline neutrino oscillation experiment has been running in anti-neutrino mode since 2014 in order to perform an electron anti-neutrino appearance search, which is an essential step to a lepton CP-violation measurement, as well as a muon anti-neutrino disappearance measurement, which could be different from that of neutrinos if CPT symmetry is violated or unknown neutrino-matter...
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Marc Pelizaeus (Ruhr-Universitaet Bochum, Germany)
The BESIII experiment at the electron positron collider BEPCII in Beijing is successfully operating since 2008 and has collected large data samples in the tau-mass region, including the world’s largest data samples at the J/ψ and ψ(2S) resonances. In particular decays of these two resonances provide a rich and clean environment to study hadrons consisting out of light quarks and search for...
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3. Low-energy hadronic cross sections measurements at BABAR, and implication for the g-2 of the muonJanis McKenna (University of British Columbia)
The BABAR Collaboration has an intensive program studying hadronic cross sections in
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low-energy e+e- annihilations, accessible 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 sigma
difference between the... -
Mark Peter Whitehead (CERN)
The angle γ is the least experimentally known parameter in the CKM unitarity triangle. Its determination in decays induced by tree-level b→c and b→u transitions is largely unaffected by new physics contributions. The ultimate goal of reaching a degree-level precision requires the exploitation of all possible channels and techniques. We present here the latest measurements on the CKM angle γ in...
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Dr Sudipan De (Universidade de São Paulo)
The main goal of the ALICE experiment is to study the properties of the strongly-interacting matter, usually referred to as the Quark-Gluon Plasma (QGP), created in high-energy heavy-ion collisions. Heavy quarks, i.e. charm and beauty quarks, are good probes of the QGP as they are produced in the early stage of the collisions and witness the entire space-time evolution of the system. In...
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Christoph Florian Redmer (Johannes Gutenberg-University Mainz)
Measurements of the cross section e+e- --> pi+pi-, i.e. of the pion form
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factor, are known to be decisive for the hadronic contribution of the
anomalous magnetic moment of the muon, (g-2)mu. We present a new
measurement of the pion form factor at BESIII in the energy range between
600 and 900 MeV, which corresponds to the peak region of the rho and omega
resonances. The method of initial... -
Mr Jianhui Zhu (Central China Normal University CCNU (CN))
The high collision energies available at the LHC allow for an abundant production of hard probes, such as quarkonia, high-$p_{\rm T}$ jets and vector bosons (W, Z), which are produced in initial hard parton scattering processes. The latter decay before the formation of the Quark-Gluon Plasma (QGP), which is a deconfined phase of QCD matter produced in high-energy heavy-ion collisions....
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Adam Edward Barton (Lancaster University (GB))
[with a not-yet defined ATLAS speaker]
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Search for deviations from the standard model is performed in the
systems of the neutral B mesons. The Bs system is studied in the decay
into J/psi phi. The mixing phase phi_s and the width difference
DeltaGamma_s are determined through the simultaneous study of angular
distributions in the final state and of the decay time, performed
together with... -
Dr Alessandro Pilloni (Jefferson Lab)
The past decade witnessed a remarkable proliferation of exotic quarkonium-like resonances discovered at accelerators. In particular, the observed charged states are clearly not interpretable as QQbar mesons. Notwithstanding the considerable advances on the experimental side, conflicting theoretical descriptions do not seem to provide a definitive picture about the nature of the so-called XYZ...
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Patrizia Cenci (INFN Perugia (IT))
The NA62 experiment at CERN collected a large sample of charged kaon decays with a highly efficient trigger for decays into electrons in 2007. The kaon beam represents a source of tagged neutral pion decays in vacuum. A measurement of the electromagnetic transition form factor slope of the neutral pion in the time-like region from ~1 million fully reconstructed pi0 Dalitz decay is presented....
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Andrea Pattori (University of Zurich)
In this talk I review our recent work where we evaluate the impact of radiative corrections in R_K and R_K*.
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We find that, employing the cuts presently applied by the LHCb Collaboration, such corrections do not exceed a few percent. Moreover, their effect is well described (and corrected for) by existing Montecarlo codes. Our analysis reinforces the interest of these observables as clean... -
Patrizia Rossi (Jefferson Lab)
Understanding the emergence of nucleons and nuclei and their interactions from the properties and dynamics of quarks and gluons in Quantum Chromo-Dynamics (QCD) is a fundamental and compelling goal of nuclear science.
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A high-energy, high-luminosity polarized electron-ion collider (EIC) will be needed to explore and advance many aspects of QCD studies in the gluon dominated regions in nucleon... -
Fabio Ferrari (University of Bologna and INFN (IT))
The production rates of $b$ and $c$-hadrons in pp collisions are not expected to be identical to those of $\bar b$ and $\bar c$-hadrons due to the fact that there can be coalescence between a heavy quark produced in the hard scattering and $u$ and $d$ valence quarks in the remnant of colliding protons. In this talk we present the latest LHCb measurements on production asymmetries of $b$ and...
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Cesare Bini (Universita di Roma I "La Sapienza")
[with a not-yet defined ATLAS speaker]
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ATLAS has a wide programme to study the production properties of
conventional and exotic quarkonium, beauty, and charm bound states.
This presentation will cover the latest results on J/psi, psi2s and
Upsilon production at 7, 8, and 13 TeV, D meson and X(3872) production
with Run-1 data, B+ production at 13 TeV, and studies of associated
production... -
Philip David Rubin (George Mason University (US))
The feasibility of measuring of BR($K^0_L \rightarrow \pi^0\nu\overline{\nu}$) using a high-energy secondary neutral beam at the CERN SPS is being studied. Assuming reuse of
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the NA48 liquid-krypton calorimeter and some of the NA62 infrastructure, the studies suggest a sensitivity approaching that proposed by KOTO Step 2 is achievable in five years of running. We summarize the studies thus... -
Violaine Bellee (Ecole Polytechnique Federale de Lausanne (CH))
Radiative b-hadron decays are sensitive probes of New Physics through the study of branching fractions, CP asymmetries and photon polarisation measurements. During the LHC Run 1, the LHCb experiment has collected large samples of radiative b-hadron decays. We present the latest LHCb measurements, including new results on the time dependence of Bs → φγ decays. These results help to constrain...
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Umberto De Sanctis (University of Sussex (GB))
[with a not-yet defined ATLAS speaker]
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Processes involving the FCNC transitions in b-hadron decays
are suppressed in the SM and are sensitive to new physics. New results
in the search for the rare decays of Bs and Bd into mu+mu- are
presented. They are based on the full sample of data collected by
ATLAS at 7 and 8 TeV collision energy. The consistency with the SM and
with other available... -
Rafael Silva Coutinho (Universitaet Zuerich (CH))
Rare decays of beauty and charm hadrons test the flavour structure of the underlying theory at the level of quantum corrections. They provide information on the couplings and masses of heavy virtual particles appearing as intermediate states. A review of recent results obtained by LHCb on these topics will be presented.
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Dr Alessandro Pilloni (Jefferson Lab)
Based on the full data set recorded with the BABAR detector at center-of-mass energies at
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and near the Upsilon(4S) resonance, and corresponding to an integrated luminosity of approximately 468 fb-1,
we measure the D0-D0bar mixing parameters using a time-dependent amplitude analysis of the decay D0 -> pi+pi-pi0.
The neutral D meson candidates are selected from D*(2010)+ -> D0 pi+ decays... -
Tristan Haseler (Georgia State University)
Heavy flavor quarks are an important probe of the initial state of the Quark Gluon Plasma formed in heavy-ion collisions. $b$ and $c$ quarks are primarily produced through hard interactions, early in the collision and experience the full time evolution of the medium. Measuring their production in $p+p$ collisions can also give a baseline reference to study larger collision systems, including...
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En-Chuan Huang
.The Daya Bay Reactor Neutrino Experiment is designed to precisely measure the mixing parameter $\sin^22\theta_{13}$ via relative measurements with eight identically designed antineutrino detectors (ADs).
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In 2012, Daya Bay first observed a non-zero $\sin^22\theta_{13}$ value with a significance larger than 5$\sigma$ with the initial six ADs.
With the installation of two new ADs to complete... -
Bai-Cian Ke (Carnegie Mellon University)
As the lightest and most common example, the $Λ^+_c$ plays a key role in our understanding of the charmed baryons. The BESIII detector has collected a sample of 597 pb$^{−1}$ of $e^+ e^−$ annihilation data near $Λ^+_c \bar{\Lambda}^-_c$ threshold. Using a double-tag technique, we make absolute measurements of twelve Cabibbo-favored $Λ^+_c$ hadronic decay modes, including the golden reference...
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Zachary King (University of Cincinnati)
The Belle experiment, with the largest B meson decay events from e+e- collision, has produced numerous results that contributed to new understanding of heavy-flavor physics, including observations of CP violations in B system with subsequent confirmation of Kobayashi-Maskawa mechanism, discoveries of several electroweak penguin decays and a series of exotic charmonium-like and bottomonium-like...
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Laura Patrizii (Universita e INFN, Bologna (IT))
The OPERA experiment at the Gran Sasso underground laboratory has
recently established nu_mu -> nu_tau oscillations in appearance mode
with a significance of 5.1 sigma thanks to the observation of five
signal candidate events in a sample with a signal-to-background ratio
of about ten.The nu_tau data analysis will be discussed, with emphasis on the
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background constraints obtained by... -
Mathieu Perrin-Terrin (CERN)
K+->pi+nunu is one of the theoretically cleanest meson decay where to look for indirect effects of new physics complementary to LHC searches. The NA62 experiment at CERN SPS is designed to measure the branching ratio of this decay with 10% precision. NA62 took data in pilot runs in 2014 and 2015 reaching the final designed beam intensity. The quality of data acquired in view of the final...
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Scarlet Rachel Norberg (University of Puerto Rico Department of Physics (PR))
A search for top squarks in events with jets and missing transverse momentum is presented. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector at the LHC and correspond to an integrated luminosity of 2.3 fb$^{−1}$. Events are categorized by the properties of reconstructed jets, the presence of top quark candidates, and missing...
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Hok Chuen Cheng (University of Michigan (US))
[with a not-yet defined ATLAS speaker]
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Latest results in the ATLAS programme of heavy hadron production and
spectroscopy are presented. These include the latest searches for the
bottomonium counterpart to the X(3872), studies of B_c and Lambda_b
decays, measurement of b-quark fragmentation functions, and searches
for new exotic bound states. -
Cristina Lazzeroni (University of Birmingham (GB))
The NA48/2 experiment at CERN collected a large sample of charged kaon decays into final states with multiple charged particles in 2003-2004.
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A new upper limit on the rate of the lepton number violating decay K+- --> pi-+ mu+- mu+- obtained from this sample is reported: 8.6 × 10^−{11} at 90% CL, which improves by more than an order of magnitude
upon the previous measurements. Searches for... -
Jack Wimberley (University of Maryland (US))
Measurements of CP violation in neutral B-meson mixing are excellent probes to search for physics beyond the Standard Model. Recent measurements of the semileptonic asymmetries, Asls and Asld, obtained using the full Run 1 dataset collected by the LHCb experiment are presented.
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Dr Toshio Numao (TRIUMF)
The present status of pion decay experiments will be discussed.
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The focus will be on precision tests of electron-muon universality
in weak interactions via measurements of the branching ratio
R=(pi-->e nu)/(pi ->mu nu). A recent TRIUMF measurement provided an
improved precision of 0.12 % in the ratio of g_e/g_mu. A further
improvement is expected in the future analysis based on more data. -
Racha Cheiab (University of Mississippi)Submissions
We present results on radiative and electroweak-penguin decays based on the full BABAR dataset. The decays B->K* l+l- (both charged and neutral modes) are studied using an angular analysis to extract the quantities A_FB and F_L, which are sensitive to potential effects of physics beyond the Standard Model. Furthermore, the quantity P_2, which is subject to smaller theoretical uncertainties...
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Brian Hamilton (University of Maryland (US))
Lepton flavour universality (LFU) is one of the distinctive features of the Standard Model. Any violation of LFU would be a clear sign of new physics. Existing hints of non universality are already present in the leptonic and
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semileptonic sectors. Semitauonic decays, in particular, are sensitive to contributions from non-Standard-Model particles that preferentially couple to the third... -
Artur Ankowski (Virginia Tech (US))
The Long Baseline Neutrino Facility (LBNF) will consist of a 1.2-megawatt proton beam neutrino source at Fermilab in Illinois, sending high-energy neutrinos to large liquid argon detectors located 1300 kilometers away and a mile underground at the Sanford Underground Research Facility in South Dakota. The detectors will be constructed and operated by the international Deep Underground Neutrino...
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Antonio De Santis (U. di Roma "La Sapienza")
The KLOE-2 experiment at the INFN Laboratori Nazionali di Frascati
(LNF) is currently taking data at the upgraded e+e- DAFNE collider.KLOE-2 represents the continuation of KLOE with a new physics program
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mainly focused on the study of K short, η and η′ decays as well as on
kaon interferometry, test of discrete symmetries, and search for
physics beyond the Standard Model. The new data... -
Jenny Lyn Holzbauer (Mississippi University (US))
The Muon g-2 Experiment at Fermilab will measure the anomalous magnetic moment of the muon to a precision of 140 parts per billion, which is a factor of four improvement over the previous E821 measurement at Brookhaven. The experiment will also extend the search for the muon’s electric dipole moment (EDM) by approximately two orders of magnitude with a sensitivity down to 10-21...
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Salvatore Fiore (INFN Sezione di Roma (IT))
The long standing problem of reconciling the cosmological evidence of the existence of dark matter with the lack of any clear experimental observation of it, has recently revived the idea that the new particles are not directly connected with the Standard Model gauge fields, but only through mediator fields or “portals”, connecting our world with new “secluded” or “hidden” sectors.
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One of... -
Walter Andersson (Uppsala University (SE))
The PANDA experiment in preparation to be setup at FAIR (Facility for Antiproton and Ion Research) in Darmstadt, Germany will cover many important aspects of hadron physics with cooled anti-proton beams of unprecedented intensity and precision in the momentum range between 1.5 and 15 GeV/c. The versatile detector is designed to address a rich physics program. This includes spectroscopy of QCD...
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Jochen Krempel (ETHZ - ETH Zurich)
Searches for electric dipole moments (EDM) of fundamental particles are considered to be one of the most sensitive approaches to physics beyond the Standard Model (SM) of particle physics. A non-SM mechanism that violates the combined symmetry of charge conjugation and parity inversion (CP-violation) could help to explain the huge discrepancy between the observed and predicted baryon asymmetry...
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Zhengqiao Zhang (Brookhaven National Lab)
The two-particle correlation at small relative momentum is influenced by the nuclear force between two particles, which has been intensively studied for nucleons and nuclei but not much for antinucleons or antinuclei. In this talk, we present the antiproton-antiproton and proton-proton correlation function in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV based on data taken by the STAR...
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