CAN FOUR-ZERO-TEXTURE MASS MATRIX MODEL REPRODUCE THE QUARK AND LEPTON MIXING ANGLES AND CP VIOLATING PHASES?

Abstract

We study the universal quark and lepton mass matrices in the framework of SO (10) GUT. Namely, all the mass matrices have common zero texture in our model. Furthermore, we set a strict restriction from SO (10) GUT on the mass matrices. We find that good fittings to the CKM quark mixing matrix are obtained and this model naturally derives the bi-large mixings in the lepton sector.