CP asymmetry, branching ratios and isospin breaking effects of B -> K* gamma with the perturbative QCD approach

2004/06/30 by M. Matsumori, A. I. Sanda, Y. -Y. Keum
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1103/physrevd.72.014013

published as Phys.Rev. D72 (2005) 014013 · 20 pages, 44 figures

arxiv created 2005/07/27 · arxiv updated 2009/12/01

Abstract

The radiative B -> K* gamma mode is caused by a penguin operator which is a quantum correction. Thus this mode may be useful in the search for physics beyond the standard model. In this paper, we compute the branching ratio, direct CP asymmetry, and isospin breaking effects within the Standard Model in the framework perturbative QCD, and discuss how new physics might show up in this decay.

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