Lepton masses and mixing and lepton number violating processes in the minimal 3-3-1 model

We consider the minimal 3-3-1 model with sterile neutrinos transforming as singlet under the SU(3)_L ⊗ U(1)_X symmetry and we find numerical solutions for these matrices by imposing that besides the observed lepton masses, they also give the observed mixing matrix in the lepton sector, the so called Pontecorvo-Maki-Nakawaga-Sakata (PMNS) matrix. After that we study its phenomenological consequences in various processes involving flavor number violating interactions. In the allowed leptonic decays $l_i\to l_j{l}_k{\overline{l}}_k$ which occurs at the tree level with l_i = µ, τ, l_j,k = e, µ, we find in particular that the channel µ → eeē imposes a lower mass limit on the vector doubly charged bilepton of 4.58 TeV and that the scalar contributions are negligible. (paper)