First dark matter search results from Coherent CAPTAIN-Mills
First dark matter search results from Coherent CAPTAIN-Mills
复制标题
相干公司 CAPTAIN-Mills 的首个暗物质搜索结果
DOI：
10.1103/physrevd.106.012001
复制
发表时间：
2022
影响因子：
5
通讯作者：
Diaz, A.
中科院分区：
文献类型：
--
作者：
Aguilar-Arevalo, A. A.;Alves, D. S. M.;Biedron, S.;Boissevain, J.;Borrego, M.;Chavez-Estrada, M.;Chavez, A.;Conrad, J. M.;Cooper, R. L.;Diaz, A.
本文介绍了位于洛斯阿拉莫斯国家实验室洛斯阿拉莫斯中子科学中心的相干CAPTAIN米尔斯（CCM）探测器的操作。CCM是一个10吨重的液氩探测器，位于高通量中子/中微子源20米处，旨在寻找无菌中微子和轻暗物质（LDM）。2019年秋季进行了一次工程运行，通过搜索与钨靶中和的产生和衰变产生的s和LDM一致的相干散射信号，研究CCM 120探测器的特性。新的参数空间中的一个轻子疏暗物质（DM）模型被排除DM质量之间的和30 MeV。从这次运行中吸取的经验教训指导了新CCM 200探测器的开发和建造，该探测器将于2021年开始运行，并显着改进这些搜索。
This paper describes the operation of the Coherent CAPTAIN-Mills (CCM) detector located at the Los Alamos Neutron Science Center at Los Alamos National Laboratory. CCM is a 10-ton liquid argon detector located 20 meters from a high flux neutron/neutrino source and is designed to search for sterile neutrinos (’s) and light dark matter (LDM). An engineering run was performed in fall 2019 to study the characteristics of the CCM120 detector by searching for coherent scattering signals consistent with’s and LDM resulting from the production and decays ofandin the tungsten target. New parameter space in a leptophobic dark matter (DM) model was excluded for DM masses betweenand 30 MeV. The lessons learned from this run have guided the development and construction of the new CCM200 detector that will begin operations in 2021 and significantly improve on these searches.