Atmospheric neutrinos in next-generation xenon and argon dark matter experiments

被引：13
|
作者：
Newstead, Jayden L. [1 ,2 ,3 ]
Lang, Rafael F. [2 ]
Strigari, Louis E. [4 ]
机构：
[1] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA
[2] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA
[3] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia
[4] Texas A&M Univ, Mitchell Inst Fundamental Phys & Astron, Dept Phys & Astron, College Stn, TX 77845 USA
来源：
PHYSICAL REVIEW D | 2021年 / 104卷 / 11期
基金：
澳大利亚研究理事会;
关键词：
D O I：
10.1103/PhysRevD.104.115022
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the sensitivity of future xenon- and argon-based dark matter and neutrino detection experiments to low-energy atmospheric neutrinos. Not accounting for experimental backgrounds, the primary obstacle for identifying nuclear recoils induced by atmospheric neutrinos in xenon is the tail of the electron recoil distribution due to pp solar neutrinos. We use the NEST code to model the solar and atmospheric neutrino signals in a xenon detector and find that an exposure of 700 tonne-years will produce a 5 sigma detection of atmospheric neutrinos. We explore the effect of different detector properties and find that a sufficiently long electron lifetime is essential to the success of such a measurement.
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页数：8
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