Measurements of argon-scintillation and -electroluminescence properties for low mass WIMP dark matter search

Measurements of argon-scintillation and -electroluminescence properties for low mass WIMP dark matter search
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低质量 WIMP 暗物质搜索的氩闪烁和电致发光特性测量

DOI:
10.1088/1748-0221/15/08/c08012
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发表时间:
2020
影响因子:
1.3
通讯作者:
Yorita K.
Yorita K.
中科院分区:
工程技术4区
文献类型:
--
作者:
Kimura M.;Aoyama K.;Takeda T.;Tanaka M.;Yorita K.

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它已被证明,液氩闪烁探测器是一个很好的粒子探测器,用于各种物理实验,特别是那些寻找证据的WIMP暗物质。检测器观察初级闪烁信号(S1)和/或次级电致发光信号(S2)。至关重要的是,全面了解探测器的特性,以便这些项目减少系统的不确定性,提高灵敏度。这项工作包括最近的测量,在早稻田大学的液氩实验设备,核和电子反冲的液氩闪烁和电离响应。此外,本文还对气态氩发光信号进行了基础研究,其中包括S2信号。发光过程的S2信号,基于此测量,然后讨论沿着与建议的新机制称为中性韧致辐射。
It has been demonstrated that the liquid argon scintillation detector is an excellent particle detector for use in various physics experiments, particularly those seeking evidence of WIMPs dark matter. The detector observes primary scintillation signal (S1) and/or secondary electroluminescence signal (S2). It is crucial that the properties of the detector are understood comprehensively so that such projects reduce systematic uncertainty and improve sensitivity. This work covers the recent measurements, taken using the liquid argon test facility at Waseda University, of the liquid argon scintillation and ionization responses for nuclear and electronic recoils. Additionally, a basic study of the gaseous argon luminescence signal, which involves the S2 signal, is presented herein. The luminescence process of the S2 signal, based on this measurement, is then discussed along with a suggested new mechanism called neutral Bremsstrahlung.
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影响因子: 3.5
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