Motivated by the idea of comprehensive unification, we study a gauged SO(3) flavor extension of the extended Standard Model, including right-handed neutrinos and a Peccei-Quinn symmetry with simple charge assignments. The model accommodates the observed fermion masses and mixings and yields a characteristic, successful relation among them. The Peccei-Quinn symmetry is an essential ingredient.
SCOAP3
United States. Department of Energy (Contract No. DE-SC0012567)
European Research Council (Grant No. 742104)
Swedish Research Council (Contract No. 335-2014-7424)