New model for the neutrino mass matrix - art. no. 093011

I suggest a model based on a softly broken symmetry L-e-L-mu-L-tau and on B abu's mechanism for the two-loop radiative generation of neutrino masses. T he model predicts that one of the physical neutrinos (nu (3)) is massless a nd that its component along the nu (e) direction (U-e3) is zero. Moreover, if the soft-breaking term is assumed to be very small, then the vacuum osci llations of nu (e) have almost maximal amplitude and solve the solar-neutri no problem. New scalars are predicted in the 10 TeV energy range, and a bre akdown of e-mu-tau universality should not be far from existing experimenta l bounds..