COHERENT constraint on leptophobic dark matter using CsI data
COHERENT constraint on leptophobic dark matter using CsI data
复制标题
使用 CsI 数据对疏疏暗物质进行一致约束
DOI：
10.1103/physrevd.106.052004
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发表时间：
2022
影响因子：
5
通讯作者：
Bolozdynya, A.
中科院分区：
文献类型：
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作者：
Akimov, D.;An, P.;Awe, C.;Barbeau, P. S.;Becker, B.;Belov, V.;Bernardi, I.;Blackston, M. A.;Bock, C.;Bolozdynya, A.
我们使用的数据从相干CsI[Na]闪烁探测器，以限制亚GeV的疏轻子暗物质模型。这个探测器是为了观察来自相干弹性中微子-核散射的低能核反冲而建造的。这些能力使搜索暗物质粒子产生的空间中子源介导的矢量门户粒子与质量之间的2和。没有暗物质的证据被观察到，并限制介质耦合到夸克。这一约束改进了两个数量级的先前的结果。这个新探索的参数空间探测了暗物质遗迹丰度的区域，当介质质量大约是暗物质质量的两倍时，暗物质遗迹丰度可以用疏光暗物质来解释。COHERENT在这些质量上对疏轻子暗物质设置了最佳约束。
We use data from the COHERENT CsI[Na] scintillation detector to constrain sub-GeV leptophobic dark matter models. This detector was built to observe low-energy nuclear recoils from coherent elastic neutrino-nucleus scattering. These capabilities enable searches for dark matter particles produced at the Spallation Neutron Source mediated by a vector portal particle with masses between 2 and. No evidence for dark matter is observed and a limit on the mediator coupling to quarks is placed. This constraint improves upon previous results by two orders of magnitude. This newly explored parameter space probes the region where the dark matter relic abundance is explained by leptophobic dark matter when the mediator mass is roughly twice the dark matter mass. COHERENT sets the best constraint on leptophobic dark matter at these masses.