论文标题
探测与旋转的暗物质相互作用与$^6 $ li
Probing spin-dependent dark matter interactions with $^6$Li
论文作者
论文摘要
CRESST是针对sub-gev/c $^2 $质量的暗物质颗粒最突出的直接检测实验之一。 CRESST实验的优点之一是可能在用于探测暗物质相互作用的目标材料中包括各种核素。在这项工作中，我们特别讨论了暗物质粒子与质子和中子$^{6} $ li的相互作用。由于对LI的特定同位素的核基质元件的新计算，现在可能是可能的。为了显示使用该特定核素探测暗物质相互作用的潜力，我们使用了以前基于lialo $ _2 $的CRESST原型收集的数据，并在德国慕尼黑的Max-Planck-InstitutfürPhysik的上方地面测试实用性中运行。特别是，将$^{6} $ li的包含在极限计算中大大改善了与整个质量范围内与中子相互作用的相互作用所获得的结果。与先前与相同数据相同的限制相比，该暗物质质量的改进是显着的，大于两个低于1 GEV/c $^2 $的暗物质质量的数量级。
CRESST is one of the most prominent direct detection experiments for dark matter particles with sub-GeV/c$^2$ mass. One of the advantages of the CRESST experiment is the possibility to include a large variety of nuclides in the target material used to probe dark matter interactions. In this work, we discuss in particular the interactions of dark matter particles with protons and neutrons of $^{6}$Li. This is now possible thanks to new calculations on nuclear matrix elements of this specific isotope of Li. To show the potential of using this particular nuclide for probing dark matter interactions, we used the data collected previously by a CRESST prototype based on LiAlO$_2$ and operated in an above ground test-facility at Max-Planck-Institut für Physik in Munich, Germany. In particular, the inclusion of $^{6}$Li in the limit calculation drastically improves the result obtained for spin-dependent interactions with neutrons in the whole mass range. The improvement is significant, greater than two order of magnitude for dark matter masses below 1 GeV/c$^2$, compared to the limit previously published with the same data.
