论文标题
重新访问原始黑洞形成的Affleck-Dine机制
Revisiting the Affleck-Dine mechanism for primordial black hole formation
论文作者
论文摘要
我们研究了基于Affleck-Dine（AD）机制的原始黑洞（PBH）形成场景，并研究了两个PBH质量区域：$ M \ sim 30 M_ \ odot $由Ligo-Virgo观察到二进制黑洞合并和$ M \ Gtrsim 10^4 m_ \ ofot of ock of of of of ock of of的二进制观察到的观察。星系。在先前的研究中，人们认为不均匀的AD baryogenesis产生了较大的Baryon不对称区域，其中一些崩溃成PBH。在本文中，我们表明，由于剩余的Baryon不对称性，PBHS外部将受到严重限制，这将破坏大爆炸核合成的成功。然后，我们提出了一种替代方案，其中AD瘦素发生会导致用Lepton电荷的Q-balls的不均匀形成，从而塌陷成PBH。结果，我们发现我们的场景可以解释有利的PBH丰度，而不会与观察性约束相冲突。
We study a primordial black hole (PBH) formation scenario based on the Affleck-Dine (AD) mechanism and investigate two PBH mass regions: $M \sim 30 M_\odot$ motivated by the LIGO-Virgo observations of the binary black hole mergers and $M \gtrsim 10^4 M_\odot$ motivated by the observations of supermassive black holes at the center of galaxies. In the previous studies, it has been considered that the inhomogeneous AD baryogenesis generates regions with a large baryon asymmetry, some of which collapse into PBHs. In this paper, we show that this scenario is severely constrained due to the baryon asymmetry remaining outside PBHs, which would spoil the success of the big bang nucleosynthesis. Then, we propose an alternative scenario where the AD leptogenesis results in the inhomogeneous formation of Q-balls with lepton charges, which collapse into PBHs. As a result, we find that our scenario can explain the favorable PBH abundance without conflicting with the observational constraints.
