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arXiv · 2211.16768

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
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Abstract

High precision vertex and energy reconstruction is crucial for large liquid scintillator detectors such as JUNO, especially for the determination of the neutrino mass ordering by analyzing the energy spectrum of reactor neutrinos. This paper presents a data-driven method to obtain more realistic and more 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 vertex inaccuracy on the energy resolution is about 0.6\%.

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Gui-hong Huang, Wei Jiang, Liang-jian Wen, Yi-fang Wang, Wu-Ming Luo. 2022-11-30. Data-driven simultaneous vertex and energy reconstruction for large liquid scintillator detectors. https://arxiv.org/abs/2211.16768

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