First Direct Detection Constraints on Planck-Scale Mass Dark Matter with Multiple-Scatter Signatures Using the DEAP-3600 Detector
First Direct Detection Constraints on Planck-Scale Mass Dark Matter with Multiple-Scatter Signatures Using the DEAP-3600 Detector
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DOI：
10.1103/physrevlett.128.011801
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发表时间：
2022-01-07
影响因子：
8.6
通讯作者：
Zuniga-Reyes, A.
中科院分区：
文献类型：
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作者：
Adhikari, P.;Ajaj, R.;Zuniga-Reyes, A.
暗物质的普朗克尺度质量（类似或等于10（19）GeV/c（2））出现在动机良好的理论中，并可能由几种宇宙学机制产生。利用SNOLAB的3.3吨单相液氩探测器DEAP-3600对813 d的观测数据进行了盲分析，对超大质量暗物质的多散射信号进行了研究。没有观察到候选信号，导致普朗克尺度质量暗物质的第一个直接检测限制。领先极限将暗物质的质量限制在8.3 x 10（6）和1.2 x 10（19）GeV/c（2）之间，Ar-10散射截面限制在1.0 x 10（-23）和2.4 x 10（-18）cm（2）之间。这些结果被解释为两个不同的核子到核截面标度的复合暗物质模型的约束。
Dark matter with Planck-scale mass (similar or equal to 10(19) GeV/c(2)) arises in well-motivated theories and could be produced by several cosmological mechanisms. A search for multiscatter signals from supermassive dark matter was performed with a blind analysis of data collected over a 813 d live time with DEAP-3600, a 3.3 t single-phase liquid argon-based detector at SNOLAB. No candidate signals were observed, leading to the first direct detection constraints on Planck-scale mass dark matter. Leading limits constrain dark matter masses between 8.3 x 10(6) and 1.2 x 10(19) GeV/c(2), and Ar-10-scattering cross sections between 1.0 x 10(-23) and 2.4 x 10(-18) cm(2). These results are interpreted as constraints on composite dark matter models with two different nucleon-to-nuclear cross section scalings.