Dark matter in the time of primordial black holes

Hawking evaporation of primordial black holes (PBH) with masses ranging from ∼ 10-1 to 109 g can generate the whole observed dark matter (DM) relic density. However, a second DM production mechanism, like freeze-out or freeze-in, could have also been active in early universe. Here we study interplay these mechanisms, focusing on scenario where PBHs dominate energy density universe, leading nonstandard cosmological era. For concreteness, use singlet scalar model as an example for this analysis.