Neutral Bremsstrahlung Electroluminescence in Noble Liquids Revisited

被引：0
|
作者：
Buzulutskov, A. F. [1 ]
Frolov, E. A. [2 ]
机构：
[1] Russian Acad Sci, Budker Inst Nucl Phys, Siberian Branch, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
来源：
JETP LETTERS | 2023年 / 118卷 / 03期
基金：
俄罗斯科学基金会;
关键词：
HOT-ELECTRONS; GASES;
D O I：
10.1134/S0021364023601847
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Recent discovery of neutral bremsstrahlung (NBrS) mechanism of electroluminescence (EL) in noble gases in two-phase detectors for dark matter searches has led to a prediction that NBrS EL should be present in noble liquids as well. A rigorous theory of NBrS EL in noble liquids was developed accordingly in the framework of Cohen-Leckner and Atrazhev formalism. It has been recently followed by the first experimental observation of NBrS EL in liquid argon, which however deviates significantly from the previous theory. Given these results, we revise previous theoretical calculations of EL NBrS in noble liquids to be consistent with experiment. In particular, NBrS EL yield and spectra were calculated in this work for argon, krypton and xenon with momentum-transfer cross section of electron scattering (instead of energy-transfer one) being used for calculation of NBrS cross section. The results for light noble liquids, helium and neon, are also reexamined.
引用
收藏
页码：172 / 175
页数：4
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