Dark Matter from freeze-in and its inhomogeneities

Abstract

We consider generic freeze-in processes for generation of Dark Matter, together with the consequent re-thermalization of the Standard Model fluid. We find that Dark Matter inherits the Standard Model adiabatic inhomogeneities on the cosmological scales probed by current observations, that were super-horizon during freeze-in. Thereby, freeze-in satisfies the bounds on iso-curvature perturbations.

8 pages. Published on JHEP

References in corpus (1)

• The Dawn of FIMP Dark Matter: A Review of Models and Constraints

Cited by in corpus (4)

• Dark Matter production during Warm Inflation via Freeze-In
• Impact of freeze-in on dark matter isocurvature
• Dark Matter Isocurvature from Curvature
• Leptogenesis with perturbations in type-II and type-III seesaw models