First Direct-Detection Constraints on eV-Scale Hidden-Photon Dark Matter with DAMIC at SNOLAB
First Direct-Detection Constraints on eV-Scale Hidden-Photon Dark Matter with DAMIC at SNOLAB
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DOI：
10.1103/physrevlett.118.141803
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发表时间：
2017-04-05
影响因子：
8.6
通讯作者：
Zhou, J.
中科院分区：
文献类型：
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作者：
Aguilar-Arevalo, A.;Amidei, D.;Zhou, J.
通过SNOLAB的DAMIC实验，我们给出了对粒子质量在1.2-30 eVc(-2)范围内的隐藏光子暗物质吸收的直接探测约束。在局部暗物质完全由隐藏光子组成的假设下，讨论了其对动力学混合参数的敏感性。与太阳辐射的限制相竞争，在17 eVc(-2)时达到最小值2.2 x 10(-14)。这些结果是对质量为3-12 eVc(-2)的银晕中隐藏光子暗物质的最严格的直接探测约束，并首次证明了直接实验对暗物质相互作用产生的电离信号<；12 eV的灵敏度。
We present direct detection constraints on the absorption of hidden-photon dark matter with particle masses in the range 1.2-30 eV c(-2) with the DAMIC experiment at SNOLAB. Under the assumption that the local dark matter is entirely constituted of hidden photons, the sensitivity to the kinetic mixing parameter. is competitive with constraints from solar emission, reaching a minimum value of 2.2 x 10(-14) at 17 eV c(-2). These results are the most stringent direct detection constraints on hidden-photon dark matter in the galactic halo with masses 3-12 eV c(-2) and the first demonstration of direct experimental sensitivity to ionization signals < 12 eV from dark matter interactions.