IOP HEPP Particle Physics 2008

Session

Parallel 3B: Flavour Physics - LHC

2 Apr 2008, 11:00

Lancaster University

41. B-Mixing and b->s gamma in the Lee-Wick Standard Model

Aoife Bharucha (Durham University)

02/04/2008, 11:00

The Lee Wick Standard Model (LWSM) is an extension of the Standard Model and was recently proposed by Grinstein, O'Connell and Wise. It makes use of higher derivatives terms in the Lagrangian to introduce Lee-Wick states of negative norm. These heavy states (1TeV) cancel the quadratic divergences which arise due to the Higgs self-coupling. It is of interest to investigate the effects of this...

44. Low tan beta MSSM Predictions for B_s -> mu+ mu- at the LHC

Mr Philip Tanedo (Durham University / IPPP)

02/04/2008, 11:13

One of the most promising signals of new physics at colliders is the rare decay B_s -> mu+ mu-. The LHC will be the first experiment to directly probe this loop- and helicity- suppressed decay channel down to the Standard Model prediction. Deviations from the predicted branching ratio are a signature of new particles in the loops. In particular, it is well known that the MSSM prediction scales...

48. Rare B to K* mu mu Decays at LHCb

Mr Hugh Skottowe (University of Cambridge)

02/04/2008, 11:26

The study of rare B meson decays with the LHCb detector is expected to be one of the highlights of the first phase of LHC physics analysis. The forward-backward asymmetry of the decay Bd to K* mu mu is very sensitive to New Physics beyond the Standard Model. Recent work on optimizing the selection of the decay will be presented.

65. Measurement of CP and production asymmetries with Bs->DsMuNu decays at LHCb

Mr Kenneth Lessnoff (University of Bristol)

02/04/2008, 11:39

The CP asymmetry in Bs-Bsbar mixing is sensitive to new Physics. This can be probed from measurement of the time dependent charge asymmetry. This method also allows measurement of the Bs-Bsbar production asymmetry. This talk desribes an approach for making this measurement at LHCb. The Bs lifetimes are calculated using energy and momentum conservation considerations. This results in a...

68. An unbinned method to extract the Forward-Backward Asymmetry of Bd->K*mu+mu- decay on LHCb

Mr Franciole Marinho (University of Glasgow)

02/04/2008, 11:52

The Bd->K*mu+mu- decay ocurrs via the FCNC process in the Standard Model(SM) with a branching ratio calculated to be 11.9+-3.9x10^-7. It has been already measured in previous experiments and the the obtained value is of the order of 12.2^{+5.8}_{-5.2} x10^-7. A set of important quantities such as dimuon mass spectra and the forward-backward asymmetry(FBA) can be measured with this decay in...

74. a_{fs} at LHCb: illuminating new physics

Mr Robert Lambert (Edinburgh LHCb)

02/04/2008, 12:05

This summer the Large Hadron Collider beauty experiment, LHCb, will start its ambitious physics programme: to make precision measurements at the Large Hadron Collider. With 10^12 b-quarks produced in each 2fb-1 (~1 year) LHCb has the opportunity to perform very precise measurements of b-quark physics with much more copious samples of decays than currently available. In the measurement of the...

75. Probing CP violation in Bs mixing

Colin David Mc Lean (Edinburgh)

02/04/2008, 12:18

The LHCb experiment will offer a precise hadronic probe with which to study CP violation and possible New Physics (NP) effects in the Bs system. For example from Bs->JpsiPhi decays, it will be possible to measure the CP violating weak phase, phis. This phase owing to its small Standard Model (SM) prediction, -0.04 rad, will provide a sensitive indicator to NP occurring at the TeV scale. ...