A Reconsideration of the b -> s gamma Decay in the Minimal Flavor Violating MSSM

Understand

We present a MSSM study of the b -> s gamma decay in a Minimal Flavor Violating (MFV) framework, where the form of the soft SUSY breaking terms is determined by the Standard Model Yukawa couplings.

• In particular, we address the role of gluino contributions, which are set to zero in most studies of the MFV MSSM.
• Gluino contributions can play an important role in the MFV MSSM whenever mu * tan(beta) is large.
• In fact, similarly to chargino contributions, gluino contributions are tan(beta) enhanced and can easily dominate charged Higgs contributions for large values of tan(beta).