Fermion masses and mixings from non-Abelian family symmetry and SO(10)

by King, S. (CERN & University of Southampton)

Friday 30 Jun 2006, 14:00 → 15:00 Europe/Zurich

TH Auditorium (CERN)

Following the discovery of neutrino mass there has been real progress with the problem of understanding the quark and lepton masses and mixing parameters. I discuss some recent approaches to the flavour problem based on supersymmetric models with non-Abelian continuous or discrete gauged family symmetry combined with an SO(10) GUT. In such models the see-saw mechanism with sequential dominance and vacuum alignment can lead to approximate tri-bimaximal lepton mixing with calculable deviations expressed in terms of a neutrino sum rule which can be tested in high precision neutrino experiments.