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Lepton-flavor violating decays of neutral Higgs to muon and tauon in supersymmetric economical 3-3-1 model

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arxiv 1204.2902 v2 pith:PWDBN4YG submitted 2012-04-13 hep-ph

classification hep-ph
keywords valueshiggsmodeldecaydecayseconomicaleffectsinvestigate
verification ladder T0 review T1 audit T2 compute T3 formal
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We investigate Lepton-Flavor Violating (LFV) decays of Higgs to muon-tau in the supersymmetric economical 3-3-1 (SUSYE331) model. In the presence of flavor mixing in sleptons {mu,tau} and large values of v/v', the ratio of Br(H -->tau^+mu^-)/Br(H -->tau^+tau^-) can reach to non-negligible values O(10^{-3}), as in many known SUSY models. We predict that for the Standard Model Higgs boson, the LHC may detect its decay to muon and tauon. We also investigate the asymmetry between left and right LFV values of corrections and prove that the LFV effects are dominated by the left FLV term, which is O(10^3) times larger than the right LFV term in the limit of small values of |\mu_\rho|/m_SUSY. The contributions of Higgs-mediated effects to the decay tau --> mu mu mu are also discussed.

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  1. Higgs lepton flavor violating decays in Two Higgs Doublet Models

    hep-ph 2019-08 conditional novelty 1.0 of 10

    A mini-review explaining that the type-III two Higgs doublet model can produce h to tau mu branching ratios near the present CMS bound while remaining compatible with tau to mu gamma and related flavor constraints.

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