Large BR(h -> tau mu) in Supersymmetric Models

Abstract

We analyze the Lepton Flavor Violating (LFV) Higgs decay h -> tau mu in three supersymmetric models: Minimal Supersymmetric Standard Model (MSSM), Supersymmetric Seesaw Model (SSM), and Supersymmetric B-L model with Inverse Seesaw (BLSSM-IS). We show that in generic MSSM, with non-universal slepton masses and/or trilinear couplings, it is not possible to enhance BR(h -> tau mu) without violating the experimental bound on the BR(tau -> mu gamma). In SSM, where flavor mixing is radiatively generated, the LFV process mu -> e gamma strictly constrains the parameter space and the maximum value of BR(h -> tau mu) is of order 10^-10, which is extremely smaller than the recent results reported by the CMS and ATLAS experiments. In BLSSM-IS, with universal soft SUSY breaking terms at the grand unified scale, we emphasize that the measured values of BR(h -> tau mu) can be accommodated in a wide region of parameter space without violating LFV constraints. Thus, confirming the LFV Higgs decay results will be a clear signal of BLSSM-IS type of models. Finally, the signal of h -> tau mu in the BLSSM-IS at the LHC, which has a tiny background, is analyzed.

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Cited by in corpus (9)

• Lepton Flavor Violation Induced by a Neutral Scalar at Future Lepton Colliders
• Implications of right-handed neutrinos in $B-L$ extended standard model with scalar dark matter
• Higgs lepton flavor violating decays in Two Higgs Doublet Models
• Flavor techniques for LFV processes: Higgs decays in a general seesaw model
• Probing Lepton Flavor Violating decays in MSSM with Non-Holomorphic Soft Terms
• Higgs boson decays with lepton flavor violation in the $B-L$ symmetric SSM
• Long-Lived BLSSM Particles at the LHC
• Flavor violating leptonic decays of the Higgs boson
• Explaining the $\mathcal{R}(D)$ and $\mathcal{R}(D^{\ast })$ Anomalies in the $B-L$ Supersymmetric Standard Model with Inverse Seesaw