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Probing Sub-GeV Mass Strongly Interacting Dark Matter with a Low-Threshold Surface Experiment
Physical Review Letters ( IF 8.6 ) Pub Date : 2017-11-20 00:00:00 , DOI: 10.1103/physrevlett.119.211302
Jonathan H. Davis

Using data from the ν-cleus detector, based on the surface of Earth, we place constraints on dark matter in the form of strongly interacting massive particles (SIMPs) which interact with nucleons via nuclear-scale cross sections. For large SIMP-nucleon cross sections, the sensitivity of traditional direct dark matter searches using underground experiments is limited by the energy loss experienced by SIMPs, due to scattering with the rock overburden and experimental shielding on their way to the detector apparatus. Hence, a surface-based experiment is ideal for a SIMP search, despite the much larger background resulting from the lack of shielding. We show using data from a recent surface run of a low-threshold cryogenic detector that values of the SIMP-nucleon cross section up to approximately 1027cm2 can be excluded for SIMPs with masses above 100 MeV.

中文翻译:

用低阈值表面实验探测Sub-GeV质量与强相互作用的暗物质

使用来自 ν核检测器,基于地球表面,我们以强烈相互作用的大质量粒子(SIMP)的形式对暗物质施加了约束,这些粒子通过核尺度的横截面与核子相互作用。对于大的SIMP核子截面,由于地下覆盖物的散射和实验屏蔽物在通向探测器设备的过程中,使用地下实验进行的传统直接暗物质搜索的灵敏度受到SIMP经历的能量损失的限制。因此,尽管由于缺乏屏蔽而导致背景大得多,但基于表面的实验还是SIMP搜索的理想选择。我们显示了使用来自低阈值低温检测器的近期表面运行的数据,该数据的SIMP-核子横截面值高达10-27厘米2个 对于质量超过100 MeV的SIMP可以排除。
更新日期:2017-11-20
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