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Implications on SUSY breaking mediation mechanisms from observing $B_s \to μ^+ μ^-$ and the muon $(g-2)$

Seungwon Baek·P. Ko·Wan Young Song
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Abstract

We consider $B_s \to μ^+ μ^-$ and the muon $(g-2)_μ$ in various SUSY breaking mediation mechanisms. If the decay $B_s \to μ^+ μ^-$ is observed at Tevatron Run II with a branching ratio larger than $\sim 2 \times 10^{-8} $, the noscale supergravity (including the gaugino mediation), the gauge mediation scenario with small number of messenger fields and low messenger scale, and a class of anomaly mediation scenarios will be excluded, even if they can accommodate a large muon $(g-2)_μ$. On the other hand, the minimal supergravity scenario and similar mechanisms derived from string models can accommodate this observation.

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Seungwon Baek, P. Ko, Wan Young Song. 2003-04-01. Implications on SUSY breaking mediation mechanisms from observing $B_s \to μ^+ μ^-$ and the muon $(g-2)$. https://doi.org/10.1103/physrevlett.89.271801

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