Measurement of the scintillation efficiency for low energy nuclear- and electronic-recoils in liquid argon detector for WIMP search
Measurement of the scintillation efficiency for low energy nuclear- and electronic-recoils in liquid argon detector for WIMP search
复制标题
用于 WIMP 搜索的液氩探测器中低能核和电子反冲闪烁效率的测量
DOI：
10.1088/1742-6596/1468/1/012055
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Kimura Masato
中科院分区：
文献类型：
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作者：
Huang Jing;Tan Baolin;Masuda Satoshi;Cheng Xin;Kumar Bisoi Susanta;Melnikov Victor;Kimura Masato
液氩（LAr）闪烁探测器被认为提供了几个有吸引力的功能，以寻找WIMP暗物质。这项研究中的一个关键量是核反冲和电子反冲（NR和ER）能量沉积到闪烁信号中的转换效率。进行了两个测量来研究这些性质：（1）在高达3 kV/cm的电场下，几十keV NR的闪烁效率;（2）在零场下，ER的效率范围从几keV到1 MeV。我们提出了这些测量的结果，并讨论了基于传统模型的LAr响应。
A liquid argon (LAr) scintillation detector is known to offer several attractive features to search for WIMP dark matter. A key quantity in this search is the conversion efficiencies of nuclear-and electronic-recoils (NR and ER) energy deposition into the scintillation signal. Two measurements are performed to study these properties:(1) scintillation efficiency for a few tens of keV NR under electric fields up to 3 kV/cm;(2) efficiency for ER ranging from a few keV to 1 MeV at null field. We present the results of these measurements and discuss the LAr response based on traditional models.