Thermal Production of Gravitinos

Details Thermal Production of Gravitinos Thermal Production of Gravitinos

2000-12-05

arxiv.org/abs/hep-ph/0012052v3

Nucl.Phys.B606:518-544,2001; Erratum-ibid.B790:336-337,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

32 pages, erratum added

Scientific paper

10.1016/S0550-3213(01)00132-8 10

We evaluate the gravitino production rate in supersymmetric QCD at high temperature to leading order in the gauge coupling. The result, which is obtained by using the resummed gluon propagator, depends logarithmically on the gluon plasma mass. As a byproduct, a new result for the axion production rate in a QED plasma is obtained. The implicatons for the cosmological dark matter problem are briefly discussed, in particular the intriguing possibility that gravitinos are the dominant part of cold dark matter.

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