Forbidden Freeze-In
arXiv:2003.13265
Abstract
We study the importance of a frozen-in dark matter production regime, where the dark matter particle is produced via kinematically forbidden decays that arise from significant thermal correction to the mass a mediator particle in the plasma.
7 pages, 4 figures. To appear in the Proceedings of Corfu Summer Institute 2019 "School and Workshops on Elementary Particle Physics and Gravity"