论文标题
Snolab的Damic的低能频谱
The low-energy spectrum in DAMIC at SNOLAB
论文作者
论文摘要
DAMIC实验采用大面积，厚的电荷耦合器件（CCD）来搜索银河系中低质量暗物质颗粒与CCD目标中硅原子的相互作用。从2017年到2019年，DAMIC收集了Snolab地下实验室中安装的7个CCD阵列（40克目标）的数据。我们报告了深色搜索结果，包括在200 ev $ _ {\ rm ee} $下方的背景模型之上的明显过量事件，其起源仍然未知。我们介绍了已发表的光谱分析的详细信息，并更新了船长CCD的部署以在2023年初进行更精确的测量。
The DAMIC experiment employs large-area, thick charge-coupled devices (CCDs) to search for the interactions of low-mass dark matter particles in the galactic halo with silicon atoms in the CCD target. From 2017 to 2019, DAMIC collected data with a seven-CCD array (40-gram target) installed in the SNOLAB underground laboratory. We report dark-matter search results, including a conspicuous excess of events above the background model below 200 eV$_{\rm ee}$, whose origin remains unknown. We present details of the published spectral analysis, and update on the deployment of skipper CCDs to perform a more precise measurement by early 2023.
