Gravitino Dark Matter and Light Gluino in an R-invariant Low Scale Gauge Mediation

Details Gravitino Dark Matter and Light Gluino in an R-invariant Low Scale Gauge Mediation Gravitino Dark Matter and Light Gluino in an R-invariant Low Scale Gauge Mediation

2010-12-25

arxiv.org/abs/1012.5466v2

JHEP 1104:077,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, 12 figures; v2 reference and explanation added

Scientific paper

10.1007/JHEP04(2011)077

We consider the simplest class of the R-invariant gauge mediation model with the gravitino mass in the one to ten keV range. We show that the entropy production from the supersymmetry breaking sector makes the gravitino into a warm dark matter candidate. We also discuss that the gluino mass can be lighter than the wino mass even when the messenger sector satisfies the GUT relations at the GUT scale.

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