The phenomenology of rare and semileptonic B decays

Details The phenomenology of rare and semileptonic B decays The phenomenology of rare and semileptonic B decays

2003-09-05

arxiv.org/abs/hep-ph/0309053v1

ECONF C030603:MEC04,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures, invited talk given by D.P. at the 2nd Conference on Flavor Physics and CP Violation (FPCP 2003), 3-6 June

Scientific paper

We summarize recent progress in the theory of exclusive rare and semileptonic B decays, focusing on model-independent results. The heavy-to-light form factors parameterizing these decays admit a model-independent description in two distinct kinematical regions. In the large-energy limit of an energetic light meson, the Soft-Collinear Effective Theory can be used to prove factorization formulas for the form factors. We present factorization formulas for all B-> P,V form factors at leading order in Lambda/m_b. Near the zero-recoil point, Heavy Quark Effective Theory gives useful relations among the form factors of different currents.

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