Sub-GeV events energy reconstruction with 3-inch PMTs in JUNO

分类： 物理学 >> 交叉学科物理及相关领域的科学与技术 提交时间： 2024-01-17

Si-yuan Zhang Yong-Bo Huang Miao He Cheng-Feng Yang Guo-ming Chen

摘要： A 20-kiloton liquid scintillator detector is designed in the Jiangmen Underground Neutrino Observatory (JUNO) for multiple physics purposes, including the determination of the neutrino mass ordering through reactor neutrinos, as well as measuring supernova neutrinos, solar neutrinos, and atmosphere neutrinos to explore different physics topics. Efficient reconstruction algorithms are needed to achieve these physics goals in a wide energy range from MeV to GeV. In this paper, we present a novel method for reconstructing the energy of events using hit information from 3-inch photomultiplier tubes (PMTs) and the OCCUPANCY method. Our algorithm exhibits good performance in accurate energy reconstruction, validated with electron Monte Carlo samples spanning kinetic energies from 10~MeV to 1~GeV.

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