New mechanism of flavor symmetry breaking from supersymmetric strong dynamics

We present a class of supersymmetric models in which flavor symmetries are broken dynamically, by a set of composite haven fields. The strong dynamics that is responsible for confinement in the flavor sector also drives flavor symmetry-breaking vacuum expectation values, as a consequence of a quantum-deformed moduli space. Yukawa couplings result as a power series in the ratio of the confinement to Planck scale, and the fermion mass hierarchy depends on the differing number of preens in different flavor symmetry-breaking operators. We present viable non-Abelian and Abelian flavor models that incorporate this mechanism. [S0556-2821(97)01923-1].