论文标题
Ligo/处女座事件的PBH起源背后的QCD相变？
The QCD phase transition behind a PBH origin of LIGO/Virgo events?
论文作者
论文摘要
对于Ligo/Wigo二进制黑洞合并的巨大原始黑洞（PBH）贡献的最佳动机方案会引起QCD相变，这自然会增强与质量巨大尺度形成PBH的概率。 We reconsider the expected mass function associated not only to the QCD phase transition proper, but also the following particle antiparticle annihilation processes, and analyse the constraints on this scenario from a number of observations: The specific pattern in cosmic microwave background (CMB) anisotropies induced by accretion onto PBHs, CMB spectral distortions, gravitational wave searches, and direct counts of supermassive black高红移的孔（SMBH）。我们发现，除非PBH质量函数的临时质量演变和功率光谱的截止非常接近QCD量表，否则该方案是不可行的。尽管有这些负面的结果，我们注意到，未来对涉及亚磨性PBHS的合并二进制的检测有可能检查SMBHS在$ e^\ pm $ nihihitation时期的宇宙学起源，如果确实是PBH质量函数是由该公司热历史驱动的州驱动的方程所塑造的。
The best-motivated scenario for a sizable primordial black hole (PBH) contribution to the LIGO/Virgo binary black hole mergers invokes the QCD phase transition, which naturally enhances the probability to form PBH with masses of stellar scale. We reconsider the expected mass function associated not only to the QCD phase transition proper, but also the following particle antiparticle annihilation processes, and analyse the constraints on this scenario from a number of observations: The specific pattern in cosmic microwave background (CMB) anisotropies induced by accretion onto PBHs, CMB spectral distortions, gravitational wave searches, and direct counts of supermassive black holes (SMBHs) at high redshift. We find that the scenario is not viable, unless an ad hoc mass evolution for the PBH mass function and a cutoff in power-spectrum very close to the QCD scale are introduced by hand. Despite these negative results, we note that a future detection of coalescing binaries involving sub-solar PBHs has the potential to check the cosmological origin of SMBHs at the $e^\pm$ annihilation epoch, if indeed the PBH mass function is shaped by the changes to the equation of state driven by the thermal history of the universe.
