Conveners
4D: (Parallel) B, Charm and Onia II
- Olivier Leroy (CPPM)
Yonit Hochberg
(Weizmann Institute of Science)
6/7/12, 5:00 PM
Parallel Talk
There is experimental evidence for a direct CP asymmetry in singly Cabibbo suppressed $D$ decays, $\Delta A_{CP}$ of order a percent. Naive expectations are that the Standard Model contribution to $\Delta A_{CP}$ is an order of magnitude smaller. We explore the possibility that a major part of the asymmetry comes from new physics. In this context we discuss accommodating this large...
Silvia Borghi
(University of Glasgow (GB))
6/7/12, 5:20 PM
LHCb has collected the world's largest sample of charmed hadrons. The 1.0 fb–1 sample collected in 2011 has been used to search for direct and indirect CP violation in charm, and to measure D0 mixing parameters. Preliminary measurements from several decay modes are presented, with complementary time-dependent and time-integrated analyses.
Justin Albert
(University of Victoria (CA))
6/7/12, 5:40 PM
We present recent BaBar results on two types of new-physics searches. The first type is direct searches for low-mass dark gauge bosons and dark Higgs, motivated by theories developed to explain recent astrophysical anomalies. The second type involves B-meson decays with final states containing neutrinos, where full-event reconstruction is used to measure the 4-momentum of the neutrinos and...
Cosme Adrover Pacheco
(CPPM - Universite d'Aix - Marseille II (FR))
6/7/12, 6:00 PM
Rare lepton decays of the B(s), D and K mesons and lepton flavor violating decays are sensitive probes of New Physics (NP). In particular, the search for the decays B(s)->μ+μ- provides information on the presence of new (pseudo-)scalar particles, while the angular analysis of decays such as B->K*μ+μ- provides information on possible new vector-axial contributions. The isospin asymmetry of...
Roberto Covarelli
(University of Rochester (US))
6/7/12, 6:20 PM
Heavy Flavour Physics
Parallel Talk
Using large data samples of di-muon events, CMS has performed detailed measurements in the field of quarkonium production. Differential cross-sections of J/psi, psi(2S) and Y(nS) states in pT and rapidity will be presented, separated in prompt and non-prompt contributions for the charmonium case: experimental results are compared with recent predictions in the context of NLO nonrelativistic...
