论文标题
在类似托勒密的实验中探测无菌中微子暗物质
Probing sterile neutrino dark matter in the PTOLEMY-like experiment
论文作者
论文摘要
我们研究了检测trileile中微子$β$ -Decay中无菌中微子的宇宙背景的前景，例如托勒密样实验。质量在1 eV -10 keV之间的无菌中微子可能会导致局部密度作为温暖或冷的DM分量。在这项研究中，我们研究了在早期宇宙中具有不同生产的模型中搜索它们的可能性，而不假设无菌中微子是全暗物质成分。在这些模型中，尤其是在较低的温度或相转换的情况下，每年的捕获率可以大大提高到$ \ MATHCAL O（10）$，而不会违反其他天体物理和宇宙学观察。
We study the prospect to detect the cosmic background of sterile neutrinos in the Tritium $β$-decay, such as PTOLEMY-like experiments. The sterile neutrino with mass between 1 eV - 10 keV may contribute to the local density as warm or cold DM component. In this study, we investigate the possibility for searching them in the models with different production in the early Universe, without assuming sterile neutrino as full dark matter component. In these models, especially with low-reheating temperature or phase transition, the capture rate per year can be greatly enhanced to be $\mathcal O(10)$ without violating other astrophysical and cosmological observations.
