Dark matter as a heavy thermal hot relic

If, during the early Universe epoch, the dark matter particle thermalizes in a hidden sector which does not thermalize with the Standard Model thermal bath, its relativistic thermal decoupling can easily lead to the observed relic density, even if the dark matter particle mass is many orders of magn...

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Bibliographic Details
Main Authors: Thomas Hambye, Matteo Lucca, Laurent Vanderheyden
Format: Article
Language:English
Published: Elsevier 2020-08-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269320303579