Flavor violation and $\tan{\beta}$ in gauge mediated models with messenger-matter mixing

We consider the Minimal Gauge Mediated Model (MGMM) with either fundamental or antisymmetric messenger multiplets and study consequences of messenger-matter mixing. We find that in these models, unlike MGMM without mixing, wide range of tan β is allowed. It is shown that existing experimental limits on processes with lepton flavor violation, and on K 0 − ¯ K 0 , D 0 − ¯ D 0 and B 0 − ¯ B 0 - mixing place significant constraints on relevant coupling constants and mixing parameters. On the other hand, the contributions of the messenger-matter mixing to the rates of τ → eγ , τ → µγ and b → sγ may be well below the present experimental limits depending on the value of tan β . We also point out the possibility of sizeable slepton oscillations in this model.