Portoroz 2011: The Role of Heavy Fermions in Fundamental Physics

Session

Beauty 3

13 Apr 2011, 16:30

James Cook (Hotel Slovenija, Portoroz)

52. B physcs at e+ e- colliders

Bostjan Golob

13/04/2011, 16:30

23. Theory of B -> K(*) l+l- decays at high q^2

Gerhard Buchalla (LMU Munich)

13/04/2011, 17:00

We discuss a systematic framework for exclusive rare B decays of the type B -> K(*) l+l- at large dilepton invariant mass q^2. It is based on an operator product expansion (OPE) for the required matrix elements of the nonleptonic weak Hamiltonian in this kinematic regime. Matrix elements of subleading terms in the OPE are computed explicitly and a quantitative estimate of duality...

25. Radiative b decays as probes of New Physics

Sébastien Descotes-Genon (LPT)

13/04/2011, 17:25

I discuss how current and (some) future observables on inclusive and exclusive radiative b decays can be combined to constrain on the Wilson coefficients of the effective Hamiltonian and discriminate between the Standard Model and some scenarii of New Physics.

49. Determining the photon polarization of the b->s gamma using the B->K1(1270)gamma->(Kpipi)gamma decay

Andrey Tayduganov

13/04/2011, 17:50

Recently the radiative B decay to the strange axial-vector mesons, B->K1(1270)gamma, has been observed with a rather large branching ratio. This process is particularly interesting as the subsequent K1 decay into its three body final state allows us to determine the polarization of the photon, which is mostly left- (right-)handed for Bbar(B) in the SM while various new physics models predict...