Coherent Scattering of Low Mass Dark Matter from Optically Trapped Sensors
Coherent Scattering of Low Mass Dark Matter from Optically Trapped Sensors
复制标题
DOI：
10.1103/physrevlett.128.101301
复制
发表时间：
2022-03-09
影响因子：
8.6
通讯作者：
Moore, David C.
中科院分区：
文献类型：
--
作者：
Afek, Gadi;Carney, Daniel;Moore, David C.
我们提出了一种寻找低质量暗物质粒子的方法，这种方法是通过它们与被困的纳米级物体的散射所产生的动量反冲来实现的。我们的预测表明，即使使用少量的飞秒质量传感器阵列，也可以探索现有实验无法触及的参数空间。还分析了较小的全息图质量传感器的情况--其中暗物质可以从整个传感器相干散射--使得散射截面相对于与单个原子核的相互作用有了很大的增强。这类传感器的大型阵列有可能研究新的参数空间，低至10keV的暗物质质量。如果这种传感器探测到暗物质的反冲，它们固有的方向敏感性将允许明确地识别暗物质信号。
We propose a search for low mass dark matter particles through momentum recoils caused by their scattering from trapped, nanometer-scale objects. Our projections show that even with a modest array of femtogram-mass sensors, parameter space beyond the reach of existing experiments can be explored. The case of smaller, attogram-mass sensors is also analyzed-where dark matter can coherently scatter from the entire sensor-enabling a large enhancement in the scattering cross-section relative to interactions with single nuclei. Large arrays of such sensors have the potential to investigate new parameter space down to dark matter masses as low as 10 keV. If recoils from dark matter are detected by such sensors, their inherent directional sensitivity would allow an unambiguous identification of a dark matter signal.