Neutrino masses and lepton flavor violation in the 3-3-1 model with right-handed neutrinos

Abstract

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.

Comments: 4 pages; version to appear in Phys. Rev. D