论文标题
引力暗物质生产：原始黑洞和紫外线冻结
Gravitational dark matter production: primordial black holes and UV freeze-in
论文作者
论文摘要
暗物质（DM）仅在早期宇宙中与标准模型相互作用，这可以通过霍克（Hawk）蒸发原始黑洞（PBH）而产生。该机制在大量的DM质量中可行，直至普朗克量表。但是，DM也不可避免地由不可还原的紫外线引力冻结产生。我们表明，后一种机制设定了强大的界限，不包括PBH生产所青睐的参数空间的大区域。
Dark matter (DM) interacting only gravitationally with the standard model could have been produced in the early universe by Hawking evaporation of primordial black holes (PBH). This mechanism is viable in a large range of DM mass, spanning up to the Planck scale. However, DM is also unavoidably produced by the irreducible UV gravitational freeze-in. We show that the latter mechanism sets strong bounds, excluding large regions of the parameter space favored by PBH production.
