Description
Joint Session of WG3 and WG5
Dr
Andreas Jung
(Fermilab)
4/29/15, 2:00 PM
WG5 Heavy Flavours
Measurements of several top-quark properties are presented, obtained from the CMS data collected in 2011 and 2012 at centre-of-mass energies of 7 and 8 TeV. The results include measurements of the top pair charge asymmetry, the W helicity in top decays, the top quark charge, and of the ttbar spin correlation and the search for anomalous couplings. The results are compared with predictions from...
Sven Menke
(Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut) (D)
4/29/15, 2:30 PM
WG5 Heavy Flavours
The latest measurements of the top quark mass using the
ATLAS experiment are presented. A measurement based on a
multi-dimensional template fit that can constrain the uncertainties on
the energy measurements of jets is presented and combined with a
measurement using dilepton events. In addition, novel measurements
aiming to measure the mass in a well-defined scheme are
presented. These...
Huanzhao Liu
(SMU)
4/29/15, 3:00 PM
WG5 Heavy Flavours
We present measurements of the mass of the top quark using the full D0 Run II data set corresponding to an integrated luminosity of 9.7 fb−1. Results in the dilepton and lepton+jets decay channel of the top quark will be discussed. In the dilepton decay channel we employ the neutrino weighting technique based on the expected neutrino rapidity distribution, whereas in the lepton+jets channel we...
Steve Guy Muanza
(CPPM, Aix-Marseille Université, CNRS/IN2P3 (FR))
4/29/15, 3:20 PM
WG5 Heavy Flavours
We propose a novel method for an indirect measurement of the mass of final states
produced through charged current processes at the LHC. This method is based upon the process integral charge asymmetry. First, the theoretical prediction of the integral charge asymmetry and its related uncertainties are studied through parton level cross sections calculations. Then, the experimental extraction...
Kevin Finelli
(University of Sydney (AU))
4/29/15, 4:15 PM
WG5 Heavy Flavours
Measurements of single top-quark production in proton proton
collisions at 7 and 8 TeV are presented. In the leading order process,
a W boson is exchanged in the t-channel. The single top-quark and
anti-top total production cross sections, their ratio, as well as a
measurement of the inclusive production cross section is presented. In
addition, a measurement of the production cross...
Nikolaos Kidonakis
(Kennesaw State University)
4/29/15, 4:45 PM
WG5 Heavy Flavours
I present results from recent high-order calculations for the production of electroweak bosons and top quarks. In particular, I discuss W and Z boson production at large transverse momentum, charged Higgs production, FCNC top production, and single-top production. Theoretical predictions which include higher-order soft-gluon corrections are presented for total cross sections and differential...
Marcin Chrzaszcz
(University of Zurich (CH))
4/29/15, 5:10 PM
WG5 Heavy Flavours
We present a selection of recent results on CP violation effects measured with a sample of about 471 million B-Bbar pairs collected by the BaBar detector.
They include a measurement of CP and T asymmetries in the B0-B0bar mixing process by using inclusive dilepton samples, and and a Dalitz plot analysis of the charmless decay B+ -> Ks pi+ pi0, where the first evidence of direct CP...
Tamsin Nooney
(University of London (GB))
4/29/15, 5:35 PM
The large amount of Heavy Flavour data collected by the ATLAS experiment is potentially sensitive to New Physics, which may be found in the mixing of B meson states, or through processes that are naturally suppressed in the Standard Model. We present the most recent results on the measurement of the decay of the Bs into J/psi phi based on full data collected in LHC Run-1 and with updated...
Thomas Mastrianni Perry
(University of Wisconsin (US))
4/29/15, 6:00 PM
WG3 Electroweak Physics and Beyond the Standard Model
The production of vector bosons (V = W, Z or γ) in association with jets is a stringent test of perturbative QCD and is a background process in searches for new physics. Total and differential cross-section measurements of vector bosons produced in association with jets and heavy flavour quarks in proton-proton collisions at the LHC are presented. The measurements are compared to next-to...
