B<inf>s</inf><sup>0</sup> → K<sup>+</sup>K<sup>-</sup> and B <inf>s</inf><sup>0</sup> → K<sup>0</sup>K̄<sup>0</sup> decays within supersymmetry

Seungwon Baek, David London, Joaquim Matias, Javier Virto

Research output: Contribution to journalReview articleResearchpeer-review

24 Citations (Scopus)


We compute the supersymmetric (SUSY) contributions to the observables in Bs0 → K+K- and B s0 → K0K̄0 decays. The hadronic parameters in the standard-model (SM) amplitudes are obtained from the Bd0 → K0K̄0 decay using a recent approach that combines flavor SU(3) symmetry and a controlled input from QCD factorization. The latest experimental data for BR(Bs0 → 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 Bs0 → K K̄ decay modes are affected with the inclusion of SUSY, after imposing constraints from BR(B → X sγ), B → πK and ΔMs over the parameter space. While the branching ratios remain unaffected by SUSY, we identify the CP asymmetries of the Bs0 → K K̄ decays as the most promising observables to look for large deviations from the SM. © SISSA 2006.
Original languageEnglish
Article number019
JournalJournal of High Energy Physics
Issue number12
Publication statusPublished - 1 Dec 2006


  • B-Physics
  • CP violation
  • Supersymmetry Phenomenology


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