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Analytic Approach to Light Dark Matter Propagation
Physical Review Letters ( IF 8.1 ) Pub Date : 2023-05-31 , DOI: 10.1103/physrevlett.130.221001
Christopher V Cappiello 1
Affiliation  

If dark matter interacts too strongly with nuclei, it could be slowed to undetectable speeds in Earth’s crust or atmosphere before reaching a detector. For sub-GeV dark matter, approximations appropriate for heavier dark matter fail, necessitating the use of computationally expensive simulations. We present a new, analytic approximation for modeling attenuation of light dark matter in Earth. We show that our approach agrees well with Monte Carlo results, and can be much faster at large cross sections. We use this method to reanalyze constraints on subdominant dark matter.

中文翻译:

光暗物质传播的分析方法

如果暗物质与原子核的相互作用过于强烈,它在到达探测器之前可能会在地壳或大气中减慢至无法检测到的速度。对于次 GeV 暗物质,适用于较重暗物质的近似会失败,因此需要使用计算量大的模拟。我们提出了一种新的解析近似来模拟地球中光暗物质的衰减。我们表明,我们的方法与蒙特卡罗结果非常吻合,并且在大横截面上速度更快。我们使用这种方法来重新分析对次主导暗物质的约束。
更新日期:2023-05-31
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