Primordial black holes from an electroweak phase transition
Primordial black holes from an electroweak phase transition
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DOI：
10.1103/physrevd.105.115033
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发表时间：
2022-01
影响因子：
5
通讯作者：
Peisi Huang;Ke-Pan Xie
中科院分区：
文献类型：
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作者：
Peisi Huang;Ke-Pan Xie
我们提出了一种机制，形成原始黑洞（PBH）通过一阶电弱相变（FOEWPT）。FOEWPT是通过用一个真实的单重标量扩展标准模型来实现的，而PBH的形成是通过被称为费米球的非拓扑孤子的坍缩来实现的。在FOEWPT过程中，这种孤子通过在假真空中捕获费米子而形成，并最终由于内部Yukawa吸引力而坍缩成PBH。我们证明了PBH暗物质候选者的可能存在，典型的实验信号包括FOEWPT引力波和LHC的多轻子/喷流或位移顶点末态。
We propose a mechanism that forms primordial black holes (PBHs) via a first-order electroweak phase transition (FOEWPT). The FOEWPT is realized by extending the Standard Model with a real singlet scalar, while the PBH formation is achieved by the collapse of non-topological solitons called Fermi-balls. Such solitons form via trapping fermions in the false vacuum during the FOEWPT, and they eventually collapse into PBHs due to the internal Yukawa attractive force. We demonstrate that a scenario with PBH dark matter candidate can exist, and the typical experimental signals include FOEWPT gravitational waves and the multi-lepton/jet or displaced vertex final states at the LHC.