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.

16 pages, 4 figures. New comments and references added

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• Searching for New Physics in b to s Hadronic Penguin Decays
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• Observation of the decay $B_s^0\to K^0{\overline{K}}^0$
• The B-->pi K Puzzle and Supersymmetry
• Charmless $B_s\to PP,PV,VV$ Decays Based on the six-quark Effective Hamiltonian with Strong Phase Effects II
• Studying of B_s^0-\bar{B}_s^0 mixing and B_{s}\to K^{(*)-}K^{(*)+} decays within supersymmetry
• B_s\to K^{(*)-}K^{(*)+}, K^{(*)-}π^{+}, K^{(*)-}ρ^{+} decays in R-parity violating supersymmetry
• Measurement of the branching fraction of the decay $B_s^0\to K_S^0{K}_S^0$
• Sensitivity of the squark flavor mixing to the CP violation of K, B0 and Bs mesons
• A solution to B --> pi pi puzzle and B --> K K
• CP and charge asymmetries at CDF
• Extracting the Bs - anti-Bs mixing angle from B--> VV decays and comments on the puzzling B--> K* l+l- decay
• Sum rules for B-->pi eta('), K eta('), eta(') eta(') decays