Relating B_s Mixing and B_s -> mu+mu- with New Physics

Details Relating B_s Mixing and B_s -> mu+mu- with New Physics Relating B_s Mixing and B_s -> mu+mu- with New Physics

2011-01-31

arxiv.org/abs/1102.0009v2

Phys.Rev.D83:114017,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, 5 figures; corrected misprints, updated numerical inputs and new references

Scientific paper

10.1103/PhysRevD.83.114017

We perform a study of the Standard Model (SM) fit to the mixing quantities $\Delta M_{B_s}$, and $\Delta \Gamma_{B_s}/\Delta M_{B_s}$ in order to bound contributions of New Physics to $B_s$ mixing. We then use this to explore the branching fraction of $B_{s} \to \mu^+\mu^-$ in certain models of New Physics (NP). In most cases, this constrains NP amplitudes for $B_{s} \to \mu^+\mu^-$ to lie below the SM component.

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