Cogenesis of LIGO primordial black holes and dark matter
Cogenesis of LIGO primordial black holes and dark matter
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DOI：
10.1103/physrevd.98.043514
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发表时间：
2017-11
影响因子：
5
通讯作者：
F. Hasegawa;M. Kawasaki
中科院分区：
文献类型：
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作者：
F. Hasegawa;M. Kawasaki
在这封信中，我们提出了一种新颖的场景，可以同时解释最小超对称标准模型中的 $\mathcal{O}(10)M_\odot$ 原初黑洞（PBH）和暗物质。 LIGO-Virgo 合作检测到的引力波 (GW) 事件表明存在重达 $\sim 30M_\odot$ 的黑洞。在我们的场景中，作为 PBH 的种子，我们利用由特殊类型的 Affleck-Dine 机制引起的重子数扰动。此外，该场景不会受到 Silk 阻尼和脉冲星定时导致的 CMB $\mu$ 失真的严格限制。我们发现这种情况不仅可以一致地解释当前的引力波事件，还可以解释阿弗莱克-戴因机制后形成的非拓扑孤子（称为 Q 球）的暗物质丰度。
In this letter, we propose a novel scenario which simultaneously explains $\mathcal{O}(10)M_\odot$ primordial black holes (PBHs) and dark matter in the minimally supersymmetric standard model. Gravitational waves (GWs) events detected by LIGO-Virgo collaboration suggest an existence of black holes as heavy as $\sim 30M_\odot$. In our scenario, as seeds of the PBHs, we make use of the baryon number perturbations which are induced by the special type of Affleck-Dine mechanism. Furthermore, the scenario does not suffer from the stringent constraints from CMB $\mu$-distortion due to the Silk damping and pulsar timing. We find the scenario can explain not only the current GWs events consistently, but also dark matter abundance by the non-topological solitons formed after Affleck-Dine mechanism, called Q-balls.