Data-driven simultaneous vertex and energy reconstruction for large liquid scintillator detectors

Gui-Hong Huang; Wei Jiang; Liang-Jian Wen; Yi-Fang Wang; Wu-Ming Luo

doi:10.1007/s41365-023-01240-0

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Data-driven simultaneous vertex and energy reconstruction for large liquid scintillator detectors

NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH | Updated：2023-08-14

- Data-driven simultaneous vertex and energy reconstruction for large liquid scintillator detectors
- Nuclear Science and Techniques Vol. 34, Issue 6, Article number: 83(2023)
- Affiliations：
  
  1.School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, China
  2.Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  3.School of Physical Sciences, University of Chinese Academy of Science, Beijing 100049, China
- Author bio：
  
  †huanggh@wyu.edu.cn
  ‡luowm@ihep.ac.cn
- Funds：
- DOI：10.1007/s41365-023-01240-0
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Gui-Hong Huang, Wei Jiang, Liang-Jian Wen, et al. Data-driven simultaneous vertex and energy reconstruction for large liquid scintillator detectors. [J]. Nuclear Science and Techniques 34(6):83(2023)
DOI：

Gui-Hong Huang, Wei Jiang, Liang-Jian Wen, et al. Data-driven simultaneous vertex and energy reconstruction for large liquid scintillator detectors. [J]. Nuclear Science and Techniques 34(6):83(2023) DOI： 10.1007/s41365-023-01240-0.

摘要

Abstract

High-precision vertex and energy reconstruction are crucial for large liquid scintillator detectors such as that at the Jiangmen Underground Neutrino Observatory (JUNO), especially for the determination of neutrino mass ordering by analyzing the energy spectrum of reactor neutrinos. This paper presents a data-driven method to obtain a more realistic and accurate expected PMT response of positron events in JUNO and develops a simultaneous vertex and energy reconstruction method that combines the charge and time information of PMTs. For the JUNO detector, the impact of the vertex inaccuracy on the energy resolution is approximately 0.6%.

关键词

Keywords

JUNOLiquid scintillator detectorNeutrino experimentVertex reconstructionEnergy reconstruction

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Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University

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