Probing sterile neutrino freeze-in at stronger coupling

Abstract The regime of dark matter (DM) freeze-in at stronger coupling interpolates between freeze-in and freeze-out. It relies on Boltzmann-suppressed dark matter production, implying that the Standard Model bath temperature never exceeds the dark matter mass. In this work, we study this regime in...

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Bibliographic Details
Main Authors: Niko Koivunen, Oleg Lebedev, Martti Raidal
Format: Article
Language:English
Published: SpringerOpen 2024-11-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-024-13583-y
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