Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-10-10
JHEP 0612:019,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 4 figures. New comments and references added
Scientific paper
10.1088/1126-6708/2006/12/019
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.
Baek Seungwon
London David
Matias Joaquim
Virto Javier
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