Large mixing angle MSW solution in S3 flavor symmetry

We have investigated phenomenological implications on the neutrino flavor mixings in the S3L×S3R symmetric mass matrices including symmetry breaking terms. We have shown how to get the large mixing angle MSW solution, sin22θ⊙=0.65–0.97 and Δm⊙2=10−5–10−4eV2, 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.