论文标题

直接检测实验中电子后坐力事件中的光晕不确定性

Halo uncertainties in electron recoil events at direct detection experiments

论文作者

Maity, Tarak Nath, Ray, Tirtha Sankar, Sarkar, Sambo

论文摘要

暗物质直接检测率与我们银河邻域中暗物质颗粒的相空间分布高度相关。在本文中,我们对天体物理不确定性对电子后坐力事件的影响进行了系统的研究,该事件在XENON和半导体检测器的直接检测实验中。我们发现,在标准的Halo模型中,在这些观察性不确定性的排除范围内,可以最高$ \ sim 50 \%$偏离基准选择。对于非标准的光环模型,我们报告了与基准标准光环模型的类似偏差,当拟合最近的宇宙学$ n $体体模拟时,在观察不确定性的情况下获得了更大的偏差。

The dark matter direct detection rates are highly correlated with the phase space distribution of dark matter particles in our galactic neighbourhood. In this paper, we make a systematic study of the impact of astrophysical uncertainties on electron recoil events at the direct detection experiments with Xenon and semiconductor detectors. We find that within the standard halo model there can be up to $ \sim 50\%$ deviation from the fiducial choice in the exclusion bounds from these observational uncertainties. For non-standard halo models, we report a similar deviation from the fiducial standard halo model when fitted with recent cosmological $N$-body simulations while even larger deviations are obtained in case of the observational uncertainties.

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