论文标题
直接检测的增强暗物质的界限：能量依赖性横截面的作用
Bounds on boosted dark matter from direct detection: The role of energy-dependent cross sections
论文作者
论文摘要
直接检测实验的后坐力阈值限制了可以检测到的暗物质（DM）颗粒的质量范围，大多数DD实验对亚M-EV DM颗粒视而不见。但是，这些光DM颗粒可以通过与能量的宇宙射线电子相撞来提高到很高的能量。这允许暗物质颗粒在直接检测实验的目标中诱导可检测的后坐力。我们使用Xenonnt和Super-Kamiokande数据得出了DM和电子散射横截面的限制。在沉重和轻度的制度中，考虑了向量和标量介体。我们在分析中讨论了依赖能量依赖的横截面（由于顶点的特定洛伦兹结构）的重要性，并表明界限可以与假设恒定的无依赖能量的横截面所获得的结果显着不同，这通常是在文献中为简单而假定的。我们的边界也与其他天体物理和宇宙学约束进行了比较。
The recoil threshold of Direct Detection experiments limits the mass range of Dark Matter (DM) particles that can be detected, with most DD experiments being blind to sub-MeV DM particles. However, these light DM particles can be boosted to very high energies via collisions with energetic Cosmic Ray electrons. This allows Dark Matter particles to induce detectable recoil in the target of Direct Detection experiments. We derive constraints on scattering cross section of DM and electron, using XENONnT and Super-Kamiokande data. Vector and scalar mediators are considered, in the heavy and light regimes. We discuss the importance of including energy dependent cross sections (due to specific Lorentz structure of the vertex) in our analysis, and show that the bounds can be significantly different than the results obtained assuming constant energy-independent cross-section, often assumed in the literature for simplicity. Our bounds are also compared with other astrophysical and cosmological constraints.
