论文标题
调查中微子检测器中增强暗物质的共线分裂效应
Investigating the collinear splitting effects of boosted dark matter at neutrino detectors
论文作者
论文摘要
我们研究了简化的电子 - 光含暗光子模型的框架中宇宙射线增强暗物质（DM）的探测前景。为了关注Kev $ \ sim $ MeV量表周围的暗物质和暗光子质量，我们考虑了从Xenon1t和Super-K实验获得的边界。电子结合状态效应在计算Xenon1t约束时仔细处理。至于中微子检测器的检测能量阈值相对较高，通过引入DM Parton分布函数（PDF）来考虑由质量和动量转移之间的尺度层次结构引起的大对数效应。对数效应将降低中微子检测器中DM散射的电子后坐力速率。此外，我们发现沙丘和Juno实验提供了高灵敏度，可以通过深色康普顿工艺探测DM PDF中的深色光子成分。我们还检查了DM自散射横截面上的子弹群集约束。
We study the probing prospects of cosmic ray boosted dark matter (DM) in the framework of simplified electron-philic dark photon model. Focusing on the dark matter and dark photon masses around keV $\sim $ MeV scale, we consider the bounds obtained from the XENON1T and Super-K experiments. The electron bound state effects are treated carefully in calculating the XENON1T constraint. As for the detection at neutrino detector where the energy threshold is relatively higher, the large logarithmic effects induced by the scale hierarchy between the masses and momentum transfer are considered by introducing the DM parton distribution function (PDF). The logarithmic effects will reduce the electron recoil rate for DM scattering in neutrino detectors. Moreover, we find the DUNE and JUNO experiments provide high sensitivities for probing the dark photon component in the DM PDF through the dark Compton process. We also check the Bullet Cluster constraint on the DM self-scattering cross section.
