Background discrimination for neutrinoless double beta decay in liquid xenon using Cherenkov light

被引：5
|
作者：
Brodsky, Jason Philip [1 ]
Sangiorgio, Samuele [1 ]
Heffner, Michael [1 ]
Stiegler, Tyana [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2019年 / 922卷
关键词：
Neutrinoless double beta decay; Liquid xenon; Background discrimination;
D O I：
10.1016/j.nima.2018.12.057
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Neutrinoless double beta decays in liquid xenon produce a significant amount of Cherenkov light, with a photon number and angular distribution that distinguishes these events from common backgrounds. A GEANT4 simulation was used to simulate Cherenkov photon production and measurement in a liquid xenon detector and a multilayer perceptron was used to analyze the resulting distributions to classify events based on their Cherenkov photons. Our results show that a modest improvement in the sensitivity of neutrinoless double beta decay searches is possible using this technique, but the kinematics of the neutrinoless double beta decay and electron scattering in liquid xenon substantially limit this approach.
引用
收藏
页码：76 / 83
页数：8
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