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arXiv · hep-ph/0610109

Bs-->K+K- and Bs-->K0 anti-K0 Decays within Supersymmetry

Seungwon Baek·David London·Joaquim Matias·Javier Virto
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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.

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Seungwon Baek, David London, Joaquim Matias, Javier Virto. 2006-11-27. Bs-->K+K- and Bs-->K0 anti-K0 Decays within Supersymmetry. https://doi.org/10.1088/1126-6708%2F2006%2F12%2F019

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