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arXiv · 0705.0477

Penguin-mediated B_(d,s)->VV decays and the Bs - anti-Bs mixing angle

Sebastien Descotes-Genon·Joaquim Matias·Javier Virto
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Abstract

In this letter, we propose three different strategies to extract the weak mixing angle phi_s of the Bs system using penguin-mediated decays into vectors, mainly Bs->K*K*, Bs->phi K* and Bs->phi phi. We also provide predictions for the longitudinal branching ratio and CP-asymmetries of Bs->K*K* using a method that combines QCD factorisation with flavour symmetries to relate this decay to its Bd counterpart.

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Sebastien Descotes-Genon, Joaquim Matias, Javier Virto. 2007-10-01. Penguin-mediated B_(d,s)->VV decays and the Bs - anti-Bs mixing angle. https://doi.org/10.1103/physrevd.76.074005%2010.1103%2Fphysrevd.84.039901

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