论文标题
暗物质和蒸发原始黑洞的深色辐射
Dark matter and dark radiation from evaporating primordial black holes
论文作者
论文摘要
质量的原始黑洞不等$ 10^{ - 5} $到$ 10^9 $ g，可能存在于早期宇宙中。通过其蒸发机制（在大爆炸核合成之前完成），它们可能已经释放出超出标准模型的稳定颗粒。我们重新考虑了这种粒子可能构成今天观察到的暗物质的主要部分或一部分的可能性，从而更新了对温暖的暗物质约束对这种情况的影响。如果足够轻的，原始黑洞蒸发的稳定颗粒也可能为深色辐射提供重要贡献。我们通过包括积聚的影响和可能的熵不保护的影响来概括有关这种有趣的暗物质和暗辐射生产机制的先前研究。我们还会在一些详细的详细信息中讨论超出标准模型以外稳定粒子候选物的特定示例。
Primordial black holes in the mass range from $10^{-5}$ to $10^9$ g might have existed in the early universe. Via their evaporation mechanism (completed before Big Bang Nucleosynthesis), they might have released stable particles beyond the Standard Model. We reconsider the possibility that such particles might constitute the main part or a fraction of the dark matter observed today, updating the impact on this scenario from warm dark matter constraints. If sufficiently light, stable particles from primordial black holes evaporation might also provide a significant contribution to dark radiation. We generalize previous studies on this interesting dark matter and dark radiation production mechanism, by including the effects of accretion and a possible amount of entropy non conservation. We also discuss in some detail specific examples of stable particle candidates beyond the Standard Model.
