论文标题
晶体缺陷：深色物质检测的门户
Crystal Defects: A Portal To Dark Matter Detection
论文作者
论文摘要
我们建议在常用的高能物理固态检测器中使用缺陷创造能量损失，作为从背景上识别暗物质信号的工具。我们使用密度功能理论和分子动力学方法模拟了缺陷创造过程中的能量损失，并计算了相应的预期暗物质光谱。我们表明，在声子介导的固态检测器中，与预期的暗物质相互作用信号卷入的缺陷创造引起的能量损失会导致共同检测器材料的预期光谱发生显着变化。随着$ \ sim $ 10 $ 10 EV阈值低质量暗物质搜索的最新进展，预期的暗物质频谱的这种变化可以用作与原子核的暗物质相互作用的直接签名。
We propose to use the defect creation energy loss in commonly used high energy physics solid state detectors as a tool to statistically identify dark matter signal from background. We simulate the energy loss in the process of defect creation using density functional theory and molecular dynamics methods and calculate the corresponding expected dark matter spectra. We show that in phonon-mediated solid state detectors, the energy loss due to defect creation convolved with the expected dark matter interaction signal results in a significant change in the expected spectra for common detector materials. With recent progress towards $\sim$10 eV threshold low-mass dark matter searches, this variation in expected dark matter spectrum can be used as a direct signature of dark matter interactions with atomic nuclei.
