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

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

2010-01-08

arxiv.org/abs/1001.1234v3

Physics

High Energy Physics

High Energy Physics - Theory

26 pages, harvmac; V2: refs. added; V3: refs. added.

Scientific paper

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.

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