论文标题
原始黑洞蒸发及其在中微子实验中的检测中的轴突状颗粒
Axion-like particles from primordial black hole evaporation and their detection in neutrino experiments
论文作者
论文摘要
原始黑洞（PBHS）是辐射几百MeV区域中能量的光基颗粒的新来源。我们探讨了质量小于1 MeV的轴突状颗粒（ALP）是由PBH蒸发产生的。在地下检测器靶标中光ALP的吸收然后在当前和将来的中微子实验中诱导能量光电子标志。利用PBH ALP事件速率，我们将一般排除限制放在Super-K和Hyper-K处的轴突耦合上。我们还将这些限制转换为由pbhs $ f _ {\ rm pbh} $组成的DM分数的上限。
The primordial black holes (PBHs) play as a novel source to radiate light elementary particles of energies in the region of a few hundred MeV. We explore the possibility that the axion-like particles (ALPs) with mass less than 1 MeV are produced from PBH evaporation. The absorption of light ALPs in the underground detector targets then induces energetic photoelectron signatures in current and future neutrino experiments. Utilizing the PBH ALP event rate, we place general exclusion limits on the axion couplings at Super-K and Hyper-K. We also translate these limits into the upper bound on the fraction of DM composed of PBHs $f_{\rm PBH}$.
