PLHC2011 - Physics at LHC 2011

Session

4D Parallel - B, charm and onia

9 Jun 2011, 17:00

Perugia Congress Center GIO

83. Measurements of B production with the CMS experiment (15' + 5')

Polina Otiougova (University of Zurich)

09/06/2011, 17:00

We present the measurements of b-quark production in inclusive channels and exclusive decays. The measurements are based on different methods, such as inclusive jet measurements with secondary vertex tagging or selecting a sample of events containing jets and at least one muon. In addition, measurements of B+, B0 and Bs meson production cross sections are presented. Finally, a study of the...

84. Anomalous t-Wb couplings:interplay of t -Wb decays and B-Bbar mixing in MFV models (15' + 5')

Jure Drobnak (Jozef Stefan Institute)

09/06/2011, 17:20

Precise measurements of the top quark decay properties at hadron colliders offer interesting new possibilities of testing the standard model. At the same time, recent intriguing experimental results concerning CP violation in the Bd and Bs systems have stimulated many studies of physics beyond the standard model. We investigate anomalous tWdj interactions as a possible source of new effects in...

85. CP-violation studies with charm decays at LHCb (15' + 5')

Vladimir Gligorov (CERN)

09/06/2011, 17:40

LHCb has reconstructed large samples of open charm events using 37 pb–1 of LHCb data collected in 2010. CP violation in charm is an excellent probe for New Physics due to the smallness of the Standard Model predictions. The analyses of D0 decays into two-body final states are presented, including time-dependent measurements of CP violation and mixing via the parameters AΓ and yCP and the...

86. J/psi measurements in p-p and Pb-Pb collisions at LHC with ALICE (15' + 5')

Cynthia Hadjidakis (INP and University Paris-sud)

09/06/2011, 18:00

In heavy ion collisions at the LHC, the ALICE experiment is studying nuclear matter at very high energy density where the formation of a Quark Gluon Plasma (QGP) is expected. J/ψ production is an important probe to characterize the properties of the QGP as it gives access to the early stages of the collision. However a fundamental understanding of the J/ψ production mechanism in p-p collisions...

88. Open Bottom & Charm Production at ATLAS (15' + 5')

Miriam Watson (University of Birmingham, UK)

09/06/2011, 18:20

The production cross sections of the D*+-, D+- and Ds+- charm mesons have been measured with the ATLAS detector in pp collisions at sqrt{s}=7 TeV. The differential cross sections as a function of transverse momentum and pseudorapidity as well as the total cross sections are measured for D*+- and D+- production. Further production measurements of B and D hadrons will be presented.

89. Measurements of open heavy flavour production in p-p and Pb-Pb collisions with Alice (15' + 5')

Davide Caffarri (INFN and University of Padova)

09/06/2011, 18:40

The main goal of the ALICE experiment is the investigation of the properties of strongly-interacting matter in a very high density deconned state, that should be formed in Pb-Pb collisions. The measurement of the heavy avour production cross section in p-p collisions at the LHC will allow to test perturbative QCD calculations in a new energy regime. The p-p collisions data are also important...