标题： 暗重子黑洞 显示英文标题

标题： Dark Baryon Black Holes

摘要： 我们探索了一种新的暗物质产生机制，该机制通过在大$N$极限下的束缚 SU(N) 规范理论中暗重子的坍缩形成轻黑洞。 尽管在物理上合理的条件下胶子球和介子不能形成黑洞，但我们证明，在适当的束缚尺度、夸克质量、颜色数目$N$和暗区温度范围内，暗重子可以在早期宇宙中产生普朗克尺度的黑洞遗迹。 假设这些遗迹是稳定的，直接在束缚时产生的暗重子黑洞种群以及从暗胶子球和介子对湮灭中冻结下来的种群在$N$中呈指数抑制，导致在黑洞遗迹是全部暗物质的模型中，质量上限为$N\lesssim 100$以及几百个普朗克单位。 我们对实现这一情景的参数空间进行了详细数值研究。 显示英文摘要

摘要： We explore a novel mechanism for dark matter production through the formation of light black holes from the collapse of dark baryons in confining SU(N) gauge theories in the large $N$ limit. While glueballs and mesons cannot form black holes under physically reasonable conditions, we prove that for appropriate ranges of the confinement scale, quark masses, number of colors $N$, and dark sector temperature, dark baryons can produce Planck-scale black hole relics in the early universe. Assuming the relics are stable, the abundance of both the dark baryon black hole population directly arising at confinement and that frozen in from dark glueball and meson pair annihilation are exponentially suppressed in $N$, leading to an upper limit $N\lesssim 100$ and of a few hundreds Planck units in mass for models where the black hole relics are the entirety of the dark matter. We present a detailed numerical study of the parameter space where this scenario is realized.