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Gravitino thermal production revisited

Oct 27, 2020

7 pages

Published in:

Phys.Rev.D 103 (2021) 7, 075025

Published: Apr 24, 2021

e-Print:

2010.14621 [hep-ph]

DOI:

10.1103/PhysRevD.103.075025

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Abstract: (APS)

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.

Note:

6 pages, 3 figures, references added, matches published version

Beyond the standard model
gravitino: production
production: thermal
temperature: reheating
gravitation
propagator

References(52)

Figures(3)

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