LMA MSW Solution in the Minimal $SU(3{)}_L\times U(1{)}_N$ Gauge Model

Abstract

The minimal $SU(3{)}_L\times U(1{)}_N$ gauge model for $(\nu ,\ell ,{\ell }^C)$ equipped with the (approximate) $L_e-L_{\mu }-L_{\tau }$ symmetry and a discrete $Z_4$ symmetry is found to provide radiative neutrino masses compatible with the LMA MSW solution.

Comments: Talk given by T.K. at the International Workshop NuFACT'01, Tsukuba, Japan (May 2001)