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

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

2007-05-03

arxiv.org/abs/0705.0477v3

Phys.Rev.D76:074005,2007; Erratum-ibid.D84:039901,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 4 figures. References added. Version published in PRD

Scientific paper

10.1103/PhysRevD.76.074005 10.11

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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