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arXiv · 2010.14621

Gravitino thermal production revisited

Helmut Eberl·Ioannis D. Gialamas·Vassilis C. Spanos
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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.

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Helmut Eberl, Ioannis D. Gialamas, Vassilis C. Spanos. 2020-10-27. Gravitino thermal production revisited. https://doi.org/10.1103/physrevd.103.075025

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