Penguin-mediated B_(d,s)->VV decays and the Bs - anti-Bs mixing angle
High Energy Physics - Phenomenology
2011-08-12 v3
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.
Keywords
Cite
@article{arxiv.0705.0477,
title = {Penguin-mediated B_(d,s)->VV decays and the Bs - anti-Bs mixing angle},
author = {Sebastien Descotes-Genon and Joaquim Matias and Javier Virto},
journal= {arXiv preprint arXiv:0705.0477},
year = {2011}
}
Comments
16 pages, 4 figures. References added. Version published in PRD