Adding one triplet and one singlet scalar leptoquark to the 331RHN model generates one-loop Majorana masses for active neutrinos and two-loop masses for sterile neutrinos, with benchmark parameters consistent with current rare decay limits.
Neutrino masses and lepton flavor violation in the 3-3-1 model with right-handed neutrinos
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We show that in the framework of the 3-3-1 model with right-handed neutrinos, small neutrino masses and large lepton flavor violating processes such as \mu \to 3e and \mu \to e\gamma can be obtained by just introducing an additional Higgs sextet. In the limit of vanishing of the Yukawa interaction among Higgs and lepton triplets (h^\nu = 0), the decay \mu \to 3e strongly depends on the neutrino mass patterns, but the \mu \to e\gamma almost does not. The neutrino masses are not constrained by such processes in the cases of h^\nu \neq 0.
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Leptoquark-induced radiative masses for active and sterile neutrinos within the framework of the 3-3-1 model
Adding one triplet and one singlet scalar leptoquark to the 331RHN model generates one-loop Majorana masses for active neutrinos and two-loop masses for sterile neutrinos, with benchmark parameters consistent with current rare decay limits.