Gravitino thermal production revisited
High Energy Physics - Phenomenology
2021-04-27 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We calculate the gravitino production rate, computing its one-loop thermal self-energy. Gravitino production processes that do not result through thermal cuts of its self-energy, have been identified and taken into account. Correcting analytical errors and numerical approximations in the previous calculations, we present our result. This deviates from the latest estimation by almost 10%. More importantly, we provide a convenient formula, for calculating the gravitino production rate and its thermal abundance, as a function of the reheating temperature of the Universe.
Cite
@article{arxiv.2010.14621,
title = {Gravitino thermal production revisited},
author = {Helmut Eberl and Ioannis D. Gialamas and Vassilis C. Spanos},
journal= {arXiv preprint arXiv:2010.14621},
year = {2021}
}
Comments
6 pages, 3 figures, references added, matches published version