Dark matter from evaporating Black Holes

Abstract

Light primordial black holes (PBHs) are an ideal particle factory: they emit all existing particles -of the Standard Model (SM) or beyond it -whose mass is smaller than the PBHs Hawking temperature. Evaporation of PBHs is thus an interesting mechanism for Dark Matter (DM) production. We review the status of the art of this possibility, analyzing in particular the effects of the DM particle spin, for both Schwarzschild and Kerr PBHs.