Neutrino type identification for atmospheric neutrinos in a large homogeneous liquid scintillation detector

Fuente: arXiv
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Main Authors: Liu, Jiaxi, Zeng, Fanrui, Duyang, Hongyue, Guo, Wanlei, He, Xinhai, Li, Teng, Liu, Zhen, Luo, Wuming, Ma, Wing Yan, Tan, Xiaohan, Wen, Liangjian, Yang, Zekun, Zhang, Yongpeng
Format: Preprint
Published: 2025
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author Liu, Jiaxi
Zeng, Fanrui
Duyang, Hongyue
Guo, Wanlei
He, Xinhai
Li, Teng
Liu, Zhen
Luo, Wuming
Ma, Wing Yan
Tan, Xiaohan
Wen, Liangjian
Yang, Zekun
Zhang, Yongpeng
author_facet Liu, Jiaxi
Zeng, Fanrui
Duyang, Hongyue
Guo, Wanlei
He, Xinhai
Li, Teng
Liu, Zhen
Luo, Wuming
Ma, Wing Yan
Tan, Xiaohan
Wen, Liangjian
Yang, Zekun
Zhang, Yongpeng
contents Atmospheric neutrino oscillations are important to the study of neutrino properties, including the neutrino mass ordering problem. A good capability to identify neutrinos' flavor and neutrinos against antineutrinos is crucial in such measurements. In this paper, we present a machine-learning-based approach for identifying atmospheric neutrino events in a large homogeneous liquid scintillator detector. This method identifies features of PMT waveforms that reflect event topologies and uses them as input to machine learning models. In addition, neutron-capture information is utilized to achieve neutrino versus antineutrino discrimination. Preliminary performances based on Monte Carlo simulations are presented, which demonstrate such a detector's potential in future measurements of atmospheric neutrinos such as the one planned for the JUNO experiment.
format Preprint
id arxiv_https___arxiv_org_abs_2503_21353
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Neutrino type identification for atmospheric neutrinos in a large homogeneous liquid scintillation detector
Liu, Jiaxi
Zeng, Fanrui
Duyang, Hongyue
Guo, Wanlei
He, Xinhai
Li, Teng
Liu, Zhen
Luo, Wuming
Ma, Wing Yan
Tan, Xiaohan
Wen, Liangjian
Yang, Zekun
Zhang, Yongpeng
High Energy Physics - Experiment
Atmospheric neutrino oscillations are important to the study of neutrino properties, including the neutrino mass ordering problem. A good capability to identify neutrinos' flavor and neutrinos against antineutrinos is crucial in such measurements. In this paper, we present a machine-learning-based approach for identifying atmospheric neutrino events in a large homogeneous liquid scintillator detector. This method identifies features of PMT waveforms that reflect event topologies and uses them as input to machine learning models. In addition, neutron-capture information is utilized to achieve neutrino versus antineutrino discrimination. Preliminary performances based on Monte Carlo simulations are presented, which demonstrate such a detector's potential in future measurements of atmospheric neutrinos such as the one planned for the JUNO experiment.
title Neutrino type identification for atmospheric neutrinos in a large homogeneous liquid scintillation detector
topic High Energy Physics - Experiment
url https://arxiv.org/abs/2503.21353