The cosmology of sub-MeV dark matter freeze-in
@article{Dvorkin2020TheCO,
title={The cosmology of sub-MeV dark matter freeze-in},
author={C. Dvorkin and T. Lin and Katelin Schutz},
journal={arXiv: Cosmology and Nongalactic Astrophysics},
year={2020}
}Dark matter (DM) could be a relic of freeze-in through a light mediator, where the DM is produced by extremely feeble, IR-dominated processes in the thermal Standard Model plasma. In the simplest viable models with the DM mass below the MeV scale, the DM has a small effective electric charge and is born with a nonthermal phase-space distribution. This DM candidate would cause observable departures from standard cosmological evolution. In this work, we combine data from the cosmic microwave… CONTINUE READING
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