论文标题
低能核后坐力的能量损失在暗物质探测器材料中
Energy loss in low energy nuclear recoils in dark matter detector materials
论文作者
论文摘要
具有EV尺度核电后能量敏感性的声子介导的检测器的最新进展需要了解晶体缺陷对暗物质或中微子相干散射预期的能量光谱的影响。我们已经进行了分子动力学模拟，以确定晶格缺陷中存储的能量量，这是后坐方向和能量的函数。在声子测量中无法观察到这种能量，因此与基础的真实后坐力能谱相比，观察到的能量谱。我们描述了多种常用检测器材料的这种效果，并证明了如何修改来自暗物质散射的预测能谱。
Recent progress in phonon-mediated detectors with eV-scale nuclear recoil energy sensitivity requires an understanding of the effect of the crystalline defects on the energy spectrum expected from dark matter or neutrino coherent scattering. We have performed molecular dynamics simulations to determine the amount of energy stored in the lattice defects as a function of the recoil direction and energy. This energy can not be observed in the phonon measurement, thus affecting the observed energy spectrum compared to the underlying true recoil energy spectrum. We describe this effect for multiple commonly used detector materials and demonstrate how the predicted energy spectrum from dark matter scattering is modified.
