论文标题
原始黑孔时期的暗物质
Dark Matter in the Time of Primordial Black Holes
论文作者
论文摘要
原始黑洞（PBH）的霍金蒸发，质量从$ \ sim 10^{ - 1} $到$ \ sim 10^9 $ g可以产生整个观察到的暗物质（DM）遗物密度。但是，第二种DM生产机制（例如冻结或冷冻机制）也可能在早期的宇宙中活跃。在这里，我们研究了这些机制的相互作用，重点是PBH占主导地位的宇宙能量密度的情况，导致了非标准的宇宙学时代。为了具体，我们将SINGLET标量DM模型作为此分析的示例。
Hawking evaporation of primordial black holes (PBH) with masses ranging from $\sim 10^{-1}$ to $\sim 10^9$ 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 the early universe. Here we study the interplay of these mechanisms, focusing on the scenario where PBHs dominate the energy density of the universe, leading to a nonstandard cosmological era. For concreteness, we use the singlet scalar DM model as an example for this analysis.
