XENON1T暗物质数据分析：信号和背景模型，以及统计推断
XENON1T Dark Matter Data Analysis: Signal & Background Models, and Statistical Inference
摘要：
XENON 1 T实验通过2吨液态氙靶中氙原子的散射来寻找暗物质粒子。探测器是双相时间投影室，其同时测量靶体积中相互作用产生的闪烁和电离信号，以重建能量和位置以及相互作用的类型。XENON 1 T探测器中心体积的本底率是迄今为止液体氙基直接探测实验中达到的最低水平。在这项工作中，我们描述的响应模型的检测器，背景和信号模型，和统计推断程序中使用的暗物质搜索与1吨$\times$年曝光的XENON 1 T数据，导致最好的限制到目前为止的WIMP核子自旋无关的弹性散射截面的WIMP质量超过6 GeV/c $^2$。
英文摘要：
The XENON1T experiment searches for dark matter particles through their scattering off xenon atoms in a 2 tonne liquid xenon target. The detector is a dual-phase time projection chamber, which measures simultaneously the scintillation and ionization signals produced by interactions in target volume, to reconstruct energy and position, as well as the type of the interaction. The background rate in the central volume of XENON1T detector is the lowest achieved so far with a liquid xenon-based direct detection experiment. In this work we describe the response model of the detector, the background and signal models, and the statistical inference procedures used in the dark matter searches with a 1 tonne$\times$year exposure of XENON1T data, that leaded to the best limit to date on WIMP-nucleon spin-independent elastic scatter cross-section for WIMP masses above 6 GeV/c$^2$.
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