Flavour Democracy in Strong Unification

Abstract

We show that the fermion mass spectrum may naturally be understood in terms of flavour democratic fixed points in supersymmetric theories which have a large domain of attraction in the presence of "strong unification". Our approach provides an alternative to the approximate Yukawa texture zeroes of the Froggatt-Nielsen mechanism. We discuss a particular model based on a broken gauged $SU(3{)}_L\times SU(3{)}_R$ family symmetry which illustrates our approach.

Comments: 21 Pages plain latex; includes 5 eps figures