论文标题
用iCecube探测宇宙射线加速暗物质
Probing Cosmic-Ray Accelerated Light Dark Matter with IceCube
论文作者
论文摘要
通过核子散射对粒子暗物质的直接检测对于理解DM的性质至关重要。在这项工作中，我们提出，像IceCube这样的高能源中微子探测器可用于独特地探测DM核子横截面的高能DM $ \ sim $ pev，并由高能宇宙射线增强。我们首次在DM-Nucleon横截面上获得了强大的约束，降低到$ \ sim 10^{ - 32} $ cm $^2 $，在此能量秤上，用于Sub-GEV DM候选。因此，这种独立的能量量表远远超过了其他现有直接检测实验，因此可以为其他搜索提供有用的见解。
The direct detection of particle dark matter through its scattering with nucleons is of fundamental importance to understand the nature of DM. In this work, we propose that the high-energy neutrino detectors like IceCube can be used to uniquely probe the DM-nucleon cross-section for high-energy DM of $\sim$ PeV, up-scattered by the high-energy cosmic rays. We derive for the first time strong constraints on the DM-nucleon cross-section down to $\sim 10^{-32}$ cm$^2$ at this energy scale for sub-GeV DM candidates. Such independent probe at energy scale far exceeding other existing direct detection experiments can therefore provide useful insights complementary to other searches.
