论文标题
宇宙射线电子的当前和未来状态
Present and future status of light dark matter models from cosmic-ray electron upscattering
论文作者
论文摘要
通过在高能宇宙射线（CR）电子上散射，可以加速非相关的暗物质（DM）。该过程导致相对论或半偏见的DM的亚群，该过程扩展了在亚GEV质量方面直接检测的实验范围。在本文中，我们研究了这种机制来限制光暗物质模型的当前和未来潜力。特别是，我们发现Super-Kamiokande和Xenon1T数据已经可以对已加速到宇宙射线电子高能的暗物质通量的领先限制。我们还研究了未来对沙丘和Hyper-K的敏感性，与以前的发现相反，结论是，沙丘将能够在各种DM模型上取代宇宙射线上的超级K范围。
Non-relativistic Dark Matter (DM) can be accelerated by scattering on high-energy cosmic-ray (CR) electrons. This process leads to a sub-population of relativistic or semi-relativistic DM which extends the experimental reach for direct detection in the sub-GeV mass regime. In this paper we examine the current and future potential of this mechanism for constraining models of light dark matter. In particular, we find that Super-Kamiokande and XENON1T data can already provide leading constraints on the flux of dark matter that has been accelerated to high energies from cosmic ray electrons. We also examine future projected sensitivities for DUNE and Hyper-K, and contrary to previous findings, conclude that DUNE will be able supersede Super-K bounds on cosmic-ray upscattered DM for a variety of DM models.
