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arXiv · 1809.10135

Interplay of super-WIMP and freeze-in production of dark matter

Mathias Garny·Jan Heisig
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Abstract

Non-thermalized dark matter is a cosmologically valid alternative to the paradigm of weakly interacting massive particles. For dark matter belonging to a $Z_2$-odd sector that contains in addition a thermalized mediator particle, dark matter production proceeds in general via both the freeze-in and superWIMP mechanism. We highlight their interplay and emphasize the connection to long-lived particles at colliders. For the explicit example of a colored t-channel mediator model we map out the entire accessible parameter space, cornered by bounds from the LHC, big bang nucleosynthesis and Lyman-alpha forest observations, respectively. We discuss prospects for the HL- and HE-LHC.

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Mathias Garny, Jan Heisig. 2018-12-12. Interplay of super-WIMP and freeze-in production of dark matter. https://doi.org/10.1103/physrevd.98.095031

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