Lepton Flavor Violating Processes in Bi-maximal Texture of Neutrino Mixings

We investigate the lepton flavor violation in the framework of the MSSM with right-handed neutrinos taking the large mixing angle MSW solution in the quasidegenerate and the inverse-hierarchical neutrino masses. We predict the branching ratio of μ → e + γ and τ → μ + 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 Ue3 is one of important ingredients to predict BR(μ → e + γ). The effect of the deviation from the complete-degenerate right-handed Majorana neutrino masses are also estimated. Furtheremore, we examine the S3L×S3R model, which gives the quasi-degenerate neutrino masses, and the Shafi-Tavartkiladze model, which gives the inverse-hierarchical neutrino masses. Both predicted branching ratios of μ → e + γ are smaller than the experimantal bound. ∗E-mail address: [email protected] †E-mail address: [email protected] ‡E-mail address: [email protected] §E-mail address: [email protected]