Flavor Violation in Supersymmetric Theories with Gauged Flavor Symmetries

In this paper we study flavor violation in supersymmetric models with gaugedflavor symmetries. There are several sources of flavor violation in thesetheories. The dominant flavor violation is the tree-level $D$-term contributionto scalar masses generated by flavor symmetry breaking. We present a newapproach for suppressing this phenomenologically dangerous effects byseparating the flavor-breaking sector from supersymmetry-breaking one. Theseparation can be achieved in geometrical setups or in a dynamical way. We alsopoint out that radiative corrections from the gauginos of gauged flavorsymmetries give sizable generation-dependent masses of scalars. The gauginomass effects are generic and not suppressed even if the dominant $D$-termcontribution is suppressed. We also analyze the constraints on the flavorsymmetry sector from these flavor-violating corrections.Comment: 22 pages, latex, 4 figure