Dark Matter from freeze-in and its inhomogeneities

Dark Matter from freeze-in and its inhomogeneities

Blog Article

Abstract We consider generic freeze-in processes Backpacks 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 Youth TShirt observations, that were super-horizon during freeze-in.Thereby, freeze-in satisfies the bounds on iso-curvature perturbations.