论文标题
超轻原始黑洞和宇宙弦的强力波产生的男性生成
Baryogenesis from ultralight primordial black holes and strong gravitational waves from cosmic strings
论文作者
论文摘要
超轻原始黑洞（PBHS）（$ \ lyssim10^9 $ g）完全通过鹰辐射（HR）蒸发，并在给定理论中产生所有颗粒，无论其其他相互作用如何。如果右手（RH）中微子是由PBH蒸发产生的，则通过瘦素生成成功的男性生成可以预测Rh Neutrinos和黑洞的质量尺度。我们表明，鉴于该理论中的Lepton数量违反（产生RH中微子的产生）是由$ u（1）$ breaking的结果造成的，然后是PBHS的形成，宇宙弦的网络自然会引起强烈的随机重力（GW）信号（GW）在Pulsar Pulsar Timer timing Arrays（PTA）（PTA）和lig rig arrays（pta and lig）（pta）。此外，由于早期宇宙中黑洞统治的短暂时期，巴里昂不对称性与初始PBH密度无关，因此GW光谱的中断发生在MHz频率附近。因此，为了通过HR通过HR发射引力来观察断裂以及通常的GW信号，需要在较高频率下的GW检测器。 Nanograv PTA的最新发现是许多脉冲星的随机共同频谱过程（解释为GWS），这与大型宇宙弦乐环（$α\ simeq 0.1 $）的PBH baryogenese（pbh）紧张。
Ultralight primordial black holes (PBHs)($\lesssim10^9$g) completely evaporate via Hawking radiation (HR) and produce all the particles in a given theory regardless of their other interactions. If the right handed (RH) neutrinos are produced from PBH evaporation, successful baryogenesis via leptogenesis predicts mass scale of RH neutrinos as well as black holes. We show that, given the lepton number violation (generation of RH neutrino masses) in the theory is a consequence of a gauged $U(1)$ breaking which is then followed by the formation of PBHs, a network of cosmic strings naturally gives rise to strong stochastic gravitational wave (GW) signal at the sensitivity level of pulsar timing arrays (PTA) and LIGO5. Besides, due to a transient period of black hole domination in the early universe, for which baryon asymmetry is independent of initial PBH density, a break in the GW spectra occurs around MHz frequency. Therefore, to observe the break along with the usual GW signal by the emission of gravitons via HR, GW detectors at higher frequencies are called for. The recent finding by the NANOGrav PTA of a stochastic common spectrum process (interpreted as GWs) across many pulsars is in tension with PBH baryogenesis for large cosmic string loops ($α\simeq 0.1$).
