2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42023We investigate the lepton flavor violation in the framework of the MSSM with right-handed neutrinos taking the large mixing angle MSW solution in the quasi-degenerate and the inverse-hierarchical neutrino masses. We predict the branching ratio of $μ\to e+γ$ processes assuming the degenerate right-handed Majorana neutrino masses. We find that the branching ratio in the quasi-degenerate neutrino mass spectrum is 100 times smaller than the ones in the inverse-hierarchical and the hierarchical neutrino spectra. We emphasize that the magnitude of $U_{e3}$ is one of important ingredients to predict BR($μ\to e +γ$). The effect of the deviation from the complete-degenerate right-handed Majorana neutrino masses are also estimated.Latex file, 9 pages, Talk presented at SUSY2002 held at DESY, Humburg(Germany), Jun. 17-23 2002High Energy Physics - Phenomenologytext