论文标题
在Xenon1t暗物质实验中搜索太阳能$^8 $ B中微子的相干弹性散射
Search for Coherent Elastic Scattering of Solar $^8$B Neutrinos in the XENON1T Dark Matter Experiment
论文作者
论文摘要
我们报告了从太阳能$^8 $ b中微子搜索核后坐力信号的弹性,从而在Xenon1t数据中散射Xenon核,从而将能量阈值从2.6 keV降低到1.6 keV。我们开发了各种新型技术,以限制阈值附近的背景增加。在0.6 t $ \ times $ y的曝光中,没有发现明显的$^8 $ b中微子样过剩。我们第一次使用太阳中微子的非检测来限制液体氙气中1-2 KEV核后坐力的光产率,以及非标准的中微子夸克相互作用。最后,我们改善了关于暗物质 - 核素相互作用的世界领先的限制,即3 gev/c $^2 $和11 GEV/c $^2 $之间的暗物质质量的限制,而不是一个数量级。
We report on a search for nuclear recoil signals from solar $^8$B neutrinos elastically scattering off xenon nuclei in XENON1T data, lowering the energy threshold from 2.6 keV to 1.6 keV. We develop a variety of novel techniques to limit the resulting increase in backgrounds near the threshold. No significant $^8$B neutrino-like excess is found in an exposure of 0.6 t $\times$ y. For the first time, we use the non-detection of solar neutrinos to constrain the light yield from 1-2 keV nuclear recoils in liquid xenon, as well as non-standard neutrino-quark interactions. Finally, we improve upon world-leading constraints on dark matter-nucleus interactions for dark matter masses between 3 GeV/c$^2$ and 11 GeV/c$^2$ by as much as an order of magnitude.