论文标题
原始黑洞作为轴的工厂：轴外层状光子
Primordial Black Holes as a Factory of Axions: Extragalactic Photons from Axions
论文作者
论文摘要
原始黑洞（PBH）是轴和轴状颗粒（阿尔卑斯山）的重要来源，前提是其鹰温度超过颗粒的质量。鉴于轴的主要衰减到光子中，可以使用敏感探测器可行地检测到它们产生的增强光子光谱。本文介绍了一种新的方法，该方法阐明了粒子在宇宙学时间范围内穿越和衰减的衰减过程。具体而言，假设PBHS的单色质谱和各向同性分布，我们会得出光子光谱和通量的估计。令人鼓舞的是，像E-Astrogam这样的即将到来的探测器可以很好地捕获该信号。
Primordial black holes (PBHs) are significant sources of axions and axion-like particles (ALPs), provided their Hawking temperature exceeds the particles' masses. Given the predominant decay of axions into photons, the enhanced photon spectrum they generate can be feasibly detected using sensitive detectors. This paper introduces a novel methodology that elucidates the decay process for particles to traverse and decay over cosmological timescales. Specifically, we derive estimations for the photon spectrum and flux, assuming a monochromatic mass spectrum and isotropic distribution for PBHs. Encouragingly, forthcoming detectors like e-ASTROGAM are well positioned to capture this signal.
