蒸发的原始黑洞,弦相反和热暗辐射
Marco Calzà1,2,3, John March-Russell4, João G Rosa1
1Univ Coimbra, Faculdade de Ciências e Tecnologia da Universidade de Coimbra and CFisUC, Rua Larga, 3004-516 Coimbra, Portugal.
Physical review letters
|January 29, 2025
概括
原始黑洞 (PBHs) 具有自旋0轴子可能有修改的霍金发射 (HE). 这项研究表明,PBH蒸发约束对于某些质量来说是减弱的,为基本物理提供了一个新的探测器.
科学领域:
- 宇宙学的宇宙学是什么?
- 粒子物理学 粒子物理学
- 天体物理学 天体物理学
背景情况:
- 原始黑洞 (PBH) 是暗物质的候选者,可以在早期宇宙中产生.
- 来自PBHs的霍金辐射 (HE) 限制了它们的丰富性,特别是对于质量低于10^14 kg的物质.
- 高温粒子的特征对超越标准模型的新物理学敏感,例如存在spin-0粒子.
研究的目的:
- 调查大量自旋零粒子的存在,特别是来自弦轴向的存在,如何影响PBH特征.
- 通过HE分析PBH旋转发展对可观测信号的影响.
- 探索未来的马射线观测台的潜力,通过PBH旋转分布探测基本物理.
主要方法:
- 详细研究PBH特征考虑HE在存在的旋转-0轴子.
- 由于PBH旋转演变而改变的HE特征的分析.
- 在10^8到10^12公斤质量范围内对PBH的蒸发约束的评估.
主要成果:
- 对于质量在10^8和10^12公斤之间的PBH,发现蒸发约束被削弱.
- 未来的马射线观测台可以测量PBH自旋分布,如果它们的丰度很大.
- 由HE产生的热轴子的能量密度可以超过宇宙微波背景能量密度.
结论:
- 旋转-0轴子的存在改变了PBH霍金辐射,削弱了特定质量范围内的蒸发约束.
- PBH旋转测量为基本理论中光标的总数提供了一个独特的探测器.
- 这项研究将PBH物理学与弦理论和粒子物理学联系起来,为发现提供了新的途径.
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