Higgs $\to \mu \tau$ in Abelian and Non-Abelian Flavor Symmetry Models

Abstract

We study lepton flavor violating Higgs decays in two models, with the recently found hint for Higgs $\to \mu \tau$ at CMS as a benchmark value for the branching ratio. The first model uses the discrete flavor symmetry group $A_4$, broken at the electroweak scale, while the second is renormalizable and based on the Abelian gauge group $L_{\mu }-L_{\tau }$. Within the models we find characteristic predictions for other non-standard Higgs decay modes, charged lepton flavor violating decays and correlations of the branching ratios with neutrino oscillation parameters.

33 pages, 11 figures; more references and comments, fewer typos; accepted by NPB

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Cited by in corpus (27)

• Lepton flavor violating Z' explanation of the muon anomalous magnetic moment
• Lepton Flavor Non-Universality in B decays from Dynamical Yukawas
• Neutrinophilic Non-Standard Interactions
• Detecting the $L_{\mu }-L_{\tau }$ gauge boson at Belle II
• Higgs $\to$ $\mu \tau$ as an indication for $S_4$ flavor symmetry
• Global Analysis of Leptophilic Z' Bosons
• Lepton Flavor Violation with Displaced Vertices
• Interpretation of Lepton Flavor Violation
• A Two Higgs Doublet Model for Dark Matter and Neutrino Masses
• Generalized Gauge U(1) Family Symmetry for Quarks and Leptons
• Higgs lepton flavor violating decays in Two Higgs Doublet Models
• Flavor techniques for LFV processes: Higgs decays in a general seesaw model
• A 2HDM for the g-2 and Dark Matter
• Light dark matter, rare $B$ decays with missing energy in $L_{\mu }-L_{\tau }$ model with a scalar leptoquark
• Unified resolution of the $R(D)$ and $R(D^{\ast })$ anomalies and the lepton flavor violating decay $h\to \mu \tau$
• Testing neutrino mass generation mechanisms from the lepton flavor violating decay of the Higgs boson
• Higgs boson decays with lepton flavor violation in the $B-L$ symmetric SSM
• Flavon-induced connections between lepton flavour mixing and charged lepton flavour violation processes
• Lepton flavor violating decays of the SM-like Higgs boson $h\to e_i{e}_j$, and $e_i\to e_j\gamma$ in a flipped 3-3-1 model
• $U(1{)}_{B-3L_{\alpha }}$ Extended Scotogenic Models and Single-zero Textures of Neutrino Mass Matrices
• Michel parameters for $\tau$ decays $\tau \to l\nu \bar{\nu }(l=e,\mu )$ in a general two Higgs doublet model with $\mu -\tau$ flavor violation
• Model identification in ${\mu }^{-}\to e^{-}$ conversion with invisible boson emission using muonic atoms
• Probing chirality structure in lepton-flavour-violating Higgs decay $h\to \tau \mu$ at the LHC
• A Three Doublet Lepton-Specific Model
• Explaining the LHC flavour anomalies
• Neutrino observables in gauged $U(1{)}_{L_{\alpha }-L_{\beta }}$ models with two Higgs doublet and one singlet scalars
• Phenomenological study of a gauged $L_{\mu }-L_{\tau }$ model with a scalar leptoquark