Large Mixing Angle MSW Solution in S_3 Flavor Symmetry

Abstract

We have investigated phenomenological implications on the neutrino flavor mixings in the $S_{3L}\times S_{3R}$ symmetric mass matrices including symmetry breaking terms. We have shown how to get the large mixing angle MSW solution, ${\sin }^{2}2{\mathrm{th}}_{\odot }=0.65\sim 0.97$ and $\Delta m_{\odot }^2=10^{-5}\sim 10^{-4}{\text{eV}}^2$, in this model. It is found that the structure of the lepton mass matrix in our model is stable against radiative corrections although the model leads to nearly degenerate neutrinos.

Comments: 14 pages, LaTex file, 1 figure