Bounds on cosmic ray-boosted dark matter in simplified models and its corresponding neutrino-floor
Bounds on cosmic ray-boosted dark matter in simplified models and its corresponding neutrino-floor
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DOI：
10.1103/physrevd.101.116007
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发表时间：
2019-07
影响因子：
5
通讯作者：
J. Dent;B. Dutta;J. Newstead;I. Shoemaker
中科院分区：
文献类型：
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作者：
J. Dent;B. Dutta;J. Newstead;I. Shoemaker
在包含光介体的简化模型中，我们研究了宇宙线向上散射暗物质的直接探测界限。我们发现，在低Dm质量下，散射截面中的能量依赖是显著的，并且产生比以前发现的(假定截面恒定)更强的数个数量级的界限。最后，我们计算了“中微子地板”，它将限制未来对宇宙线向上散射暗物质的直接探测搜索。虽然我们专注于矢量相互作用的说明，但我们强调，能量依赖对于从这种情况下的实验数据确定暗物质-CR相互作用的任何粒子物理模型的准确界限至关重要。
We study direct detection bounds on cosmic ray-upscattered dark matter in simplified models including light mediators. We find that the energy dependence in the scattering cross section is significant, and produces stronger bounds than previously found (which assumed constant cross sections) by many orders of magnitude at low DM mass. Finally, we compute the "neutrino-floor" that will limit future direct detection searches for cosmic ray-upscattered dark matter. While we focus on vector interactions for illustration, we emphasize that the energy dependence is critical in determining accurate bounds on any particle physics model of Dark Matter-CR interactions from experimental data on this scenario.