Explaining $h\to\mu^\pm\tau^\mp$, $B\to K^* \mu^+\mu^-$ and $B\to K \mu^+\mu^-/B\to K e^+e^-$ in a two-Higgs-doublet model with gauged $L_\mu-L_\tau$

By Andreas Crivellin, G. D’Ambrosio, J. Heeck. 2015

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The LHC has observed, so far, 3 deviations from the Standard Model (SM) predictions in flavor observables: LHCb reported anomalies in B→K∗μ+μ- and R(K)=B→Kμ+μ-/B→Ke+e-, while CMS found an excess in h→μτ. We show, for the first time, how these deviations from the SM can be explained within a single well-motivated model: a two-Higgs-doublet model with gauged Lμ-Lτ symmetry. We find that, despite the constraints from τ→μμμ and Bs-B¯s mixing, one can explain h→μτ, B→K∗μ+μ- and R(K) simultaneously, obtaining interesting correlations among the observables.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/fd6d0603a859c19ad43700dba677f0ea4c42b6d3