论文标题
PBH生成的BARYON-DARK巧合的引力波签名
Gravitational wave signatures of PBH-generated baryon-dark matter coincidence
论文作者
论文摘要
我们提出了一种新的方法，通过通过随机重力波（GW）发出的PBH密度波动引起的随机重力波（GW），从蒸发原始黑洞（PBH）中探测宇宙（BAU）和暗物质（DM）的非热起源。我们采用一种男生成设置，其中CP违反了彩色标量的不平衡衰减，该标量在PBH蒸发时在晚期时以非热的形式产生，导致BAU产生。相同的PBH蒸发也负责超重DM的非热起源。 Unlike the case of baryogenesis {\it via leptogeneis} that necessarily corners the PBH mass to $\sim\mathcal{O}(1)$ g, here we can have PBH mass as large as $\sim\mathcal{O}(10^7)$ g due to the possibility of producing BAU directly below sphaleron decoupling temperature.由于允许的PBH质量较大，我们还可以具有可观察到的GW，其MHz-KHz频率源自PBH密度波动，从而使模型在正在进行的以及将来的GW实验以及BBO，BBO，Decigo，CE，ET等持续的GW实验中受到限制和可验证。
We propose a new way of probing non-thermal origin of baryon asymmetry of universe (BAU) and dark matter (DM) from evaporating primordial black holes (PBH) via stochastic gravitational waves (GW) emitted due to PBH density fluctuations. We adopt a baryogenesis setup where CP violating out-of-equilibrium decays of a coloured scalar, produced non-thermally at late epochs from PBH evaporation, lead to the generation of BAU. The same PBH evaporation is also responsible for non-thermal origin of superheavy DM. Unlike the case of baryogenesis {\it via leptogeneis} that necessarily corners the PBH mass to $\sim\mathcal{O}(1)$ g, here we can have PBH mass as large as $\sim\mathcal{O}(10^7)$ g due to the possibility of producing BAU directly below sphaleron decoupling temperature. Due to the larger allowed PBH mass we can also have observable GW with mHz-kHz frequencies originating from PBH density fluctuations keeping the model constrained and verifiable at ongoing as well as near future GW experiments like LIGO, BBO, DECIGO, CE, ET etc. Due to the presence of new coloured particles and baryon number violation, the model also has complementary detection prospects at laboratory experiments.
