Saxion cosmology for thermalized gravitino dark matter

Abstract In all supersymmetric theories, gravitinos, with mass suppressed by the Planck scale, are an obvious candidate for dark matter; but if gravitinos ever reached thermal equilibrium, such dark matter is apparently either too abundant or too hot, and is excluded. However, in theories with an ax...

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Bibliographic Details
Main Authors: Raymond T. Co, Francesco D’Eramo, Lawrence J. Hall, Keisuke Harigaya
Format: Article
Language:English
Published: SpringerOpen 2017-07-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP07(2017)125