SIMULTANEOUS CHIRAL-SYMMETRY AND FLAVOR-SYMMETRY BREAKING AS A SOURCEOF HIERARCHIES OF QUARK MASSES AND MIXING

Mass hierarchy of quark generations and their mixing must inevitably r esult from the simultaneous dynamical breakdown of chiral and flavor s ymmetries. These two phenomena, which are independent in the Standard Model and in many generalizations of this model, come to be related in the proposed approach, since they have a common dynamical origin. Owi ng to this reason, basic features of these dynamics can be guessed on the basis of the observed properties of the mass hierarchy and the wea k-mixing matrix.