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Large signal of $h \rightarrow μτ$ within the constraints of $e_i \rightarrow e_jγ$ decays in the 3-3-1 model with neutral leptons (2204.01109v2)

Published 3 Apr 2022 in hep-ph

Abstract: In the framework of the 3-3-1 model with neutral leptons, we have investigated the lepton-flavor-violating sources based on the Higgs mass spectrum which has two neutral Higgses identitied with corresponding ones in the Two-Higgs-Doublet model (THDM). On the $13~\mathrm{TeV}$ scale of the LHC, we point out the parameter space regions where the experimental limits of $e_i \rightarrow e_j\gamma$ decays are satisfied. These regions depend heavily on the mixing of exotic leptons but are predicted to have large $h0_1\rightarrow \mu \tau$ signals. We also show that $\mathrm{Br}(h0_1\rightarrow \mu \tau)$ can reach a value of $10{-4}$.

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