We search for viable models of direct gauge mediation, where the SUSYbreaking 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 Kähler potential for X, such metastable vacua are possible.
- Supersymmetric standard model
- Supersymmetry and duality
- Supersymmetry breaking