Bs-->K+K- and Bs-->K0 anti-K0 Decays within Supersymmetry
Abstract
We compute the supersymmetric (SUSY) contributions to the observables in Bs-->K+K- and Bs-->K0 anti-K0 decays. The hadronic parameters in the standard-model (SM) amplitudes are obtained from the Bd-->K0 anti-K0 decay using a recent approach that combines flavor SU(3) symmetry and a controlled input from QCD factorization. The latest experimental data for BR(Bs-->K+K-) is in agreement with the SM prediction. We study how the branching ratios and the direct and mixing-induced CP asymmetries of both Bs-->KK decay modes are affected with the inclusion of SUSY, after imposing constraints from BR(B--> Xs gamma), B--> pi K and Delta Ms over the parameter space. While the branching ratios remain unaffected by SUSY, we identify the CP asymmetries of the Bs-->KK decays as the most promising observables to look for large deviations from the SM.
Keywords
Cite
@article{arxiv.hep-ph/0610109,
title = {Bs-->K+K- and Bs-->K0 anti-K0 Decays within Supersymmetry},
author = {Seungwon Baek and David London and Joaquim Matias and Javier Virto},
journal= {arXiv preprint arXiv:hep-ph/0610109},
year = {2011}
}
Comments
16 pages, 4 figures. New comments and references added