CP violation in a SUSY SO(10) x SU2_F model

by K.T. MAHANTHAPPA (University of Colorado)

Friday 5 Oct 2001, 14:00 → 15:00 Europe/Zurich

TH Auditorium (CERN)

A model based on SUSY SO(10) combined with SU(2) family symmetry with the inclusion of CP-violating phases in the mass matrices is constructed. Higgs fields in 126(bar) representation are used to construct the Yukawa sector. As a consequence R-parity is preserved at low energies, and symmetric mass textures arise from the left-right breaking chain of SO(10). The model gives rise to good predictions for quark and lepton masses and mixings. The prediction for sin2(beta) agrees with the current bounds from the current average value from BaBar and Belle. In the neutrino sector, our predictions are in good agreement with results from atmospheric neutrino experiments. Our model favours the LOW solution to the solar neutrino anomaly; the matrix element for neutrinoless double beta decay is highly suppressed. The leptonic analogue of the Jarlskog invariant is predicted to be of O(10^-2).