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

High Energy Physics - Phenomenology 2011-07-29 v2 High Energy Physics - Experiment High Energy Physics - Lattice
Authors: Eugene Golowich , JoAnne Hewett , Sandip Pakvasa , Alexey A Petrov , Gagik K Yeghiyan
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Abstract

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

Keywords

B_s mixing B_s → μ⁺μ⁻ new physics standard model fit branching fraction

Cite

@article{arxiv.1102.0009,
  title  = {Relating B_s Mixing and B_s -> mu+mu- with New Physics},
  author = {Eugene Golowich and JoAnne Hewett and Sandip Pakvasa and Alexey A Petrov and Gagik K Yeghiyan},
  journal= {arXiv preprint arXiv:1102.0009},
  year   = {2011}
}

Comments

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

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