Neutrino Masses and SO(10) SUSY GUTs

Abstract

In this talk I discuss the qualitative features of an SO(10) SUSY GUT with an SU(2)x U(1)${}^n$ family symmetry. I then describe the global fit of this theory to precision electroweak data [including charged fermion masses and mixing angles]. Finally, the predictions of the model for neutrino masses and mixing are discussed. The most predictive version of the model naturally fits atmospheric neutrino data with maximal ${\nu }_{\mu }⟶{\nu }_{\tau }$ oscillations and solar neutrino data with small mixing angle MSW ${\nu }_e⟶{\nu }_{sterile}$ oscillations.

Comments: 5 pages, talk presented at NOW2000, Otranto, Italy, Sept. 2000 on work in collaboration with T. Blazek and K. Tobe