Recent developments in radiative B decays

Details Recent developments in radiative B decays Recent developments in radiative B decays

2007-12-19

arxiv.org/abs/0712.3158v1

J.Phys.Conf.Ser.110:052024,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 figures. Accepted for publication in the proceedings of International Europhysics Conference on High Energy Physics

Scientific paper

10.1088/1742-6596/110/5/052024

We report on recent theoretical progress in radiative B decays. We focus on a calculation of logarithmically enhanced QED corrections to the branching ratio and forward-backward asymmetry in the inclusive rare decay anti-B --> X(s) l+ l-, and present the results of a detailed phenomenological analysis. We also report on the calculation of NNLO QCD corrections to the inclusive decay anti-B --> X(s) gamma. As far as exclusive modes are concerned we consider transversity amplitudes and the impact of right-handed currents in the exclusive anti-B --> K^* l+ l- decay. Finally, we state results for exclusive B --> V gamma decays, notably the time-dependent CP-asymmetry in the exclusive B --> K^* gamma decay and its potential to serve as a so-called ``null test'' of the Standard Model, and the extraction of CKM and unitarity triangle parameters from B --> (rho,omega) gamma and B --> K^* gamma decays.

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