Thermal Production of Gravitinos
High Energy Physics - Phenomenology
2008-11-26 v3 Astrophysics
High Energy Physics - Theory
Abstract
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.
Keywords
Cite
@article{arxiv.hep-ph/0012052,
title = {Thermal Production of Gravitinos},
author = {M. Bolz and A. Brandenburg and W. Buchmuller},
journal= {arXiv preprint arXiv:hep-ph/0012052},
year = {2008}
}
Comments
32 pages, erratum added