On Uplifted SUSY-Breaking Vacua and Direct Mediation in Generalized SQCD

Understand

We search for viable models of direct gauge mediation, where the SUSY-breaking sector is (generalized) SQCD, which has cosmologically favorable uplifted vacua even when the reheating temperature is well above the messenger scale.

• This requires a relatively large tadpole term in the scalar potential for the spurion field X and, consequently, we argue that pure (deformed) SQCD is not a viable model.
• On the other hand, in SQCD with an adjoint, which is natural e.g.
• in string theory, assuming an appropriate sign in the Kahler potential for X, such metastable vacua are possible.