Constraints on Light Dark Matter Particles Interacting with Electrons from DAMIC at SNOLAB
Constraints on Light Dark Matter Particles Interacting with Electrons from DAMIC at SNOLAB
复制标题
DOI：
10.1103/physrevlett.123.181802
复制
发表时间：
2019-10-31
影响因子：
8.6
通讯作者：
Virto, A. L.
中科院分区：
文献类型：
--
作者：
Aguilar-Arevalo, A.;Amidei, D.;Virto, A. L.
我们报告了光暗物质粒子与电子相互作用的直接检测限制。结果基于一种方法，该方法利用了DAMIC检测器在SNOLAB的2-6 x 10（-22）Acm（-2）的极低水平的漏电流。我们评估收集<10 e（-）的像素的电荷分布，以获得可能归因于暗物质相互作用的漏电流以外的贡献。约束放置在迄今为止未探索的参数空间的暗物质质量在0.6和100 MeVc（-2）之间。我们还提出了新的约束隐光子暗物质的质量范围在1.2-30 eV c（-2）。
We report direct-detection constraints on light dark matter particles interacting with electrons. The results are based on a method that exploits the extremely low levels of leakage current of the DAMIC detector at SNOLAB of 2-6 x 10(-22) Acm(-2). We evaluate the charge distribution of pixels that collect < 10e(-) for contributions beyond the leakage current that may be attributed to dark matter interactions. Constraints are placed on so-far unexplored parameter space for dark matter masses between 0.6 and 100 MeVc(-2). We also present new constraints on hidden-photon dark matter with masses in the range 1.2-30 eV c(-2).