Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T03: Dark Matter
Cosmological imprints of non-thermalized dark matter
Q. Decant, J. Heisig*, D.C. Hooper and L. Lopez-Honorez
Full text: pdf
Pre-published on: February 28, 2022
Published on: May 12, 2022
Abstract
Non-thermalized dark matter is a cosmologically viable alternative to the widely studied weakly interacting massive particle. We study the evolution of the dark matter phase-space distributions arising from freeze-in and superWIMP production as well as the combination of both. Utilizing our implementation in CLASS, we investigate the cosmological imprints on the matter power spectrum, constrained by Lyman-$\alpha$ forest observations. For the explicit example of a colored $t$-channel mediator model, we explore the cosmologically allowed parameter space highlighting the interplay of Lyman-$\alpha$ constraints with those from Big Bang Nucleosynthesis and the LHC.
DOI: https://doi.org/10.22323/1.398.0171
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