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

作　　者：Si-Yuan Zhang Yong-Bo Huang Miao He Cheng-Feng Yang Guo-Ming Chen 

机构地区：[1]School of Physical Science and Technology,Guangxi University,Nanning 530004,China [2]Institute of High Energy Physics,Beijing 100049,China [3]School of Physics,Sun Yat-Sen University,Guangzhou 510275,China

出　　处：《Nuclear Science and Techniques》2025年第5期88-101,共14页核技术(英文)

基　　金：supported by National Key R&D Program of China(No.2023YFA1606103);National Natural Science Foundation of China(Nos.12375105 and 12005044);the Program of Bagui Scholars Program(XF)。

摘　　要：A 20-kiloton liquid scintillator detector is under construction at the Jiangmen Underground Neutrino Observatory(JUNO)for several physics purposes.Detecting neutrinos released from nuclear reactors,the sun,supernova bursts,and Earth's atmosphere across a wide energy range necessitates efficient reconstruction algorithms.In this study,we introduce a novel method for reconstructing event energy by counting 3-inch photomultiplier tubes(PMTs)with or without signals.The proposed algorithm demonstrated excellent performance in accurate energy reconstruction,validated with electron Monte Carlo samples covering kinetic energies ranging from 10 MeV to 1 GeV.

关 键 词：Energy reconstruction Liquid scintillator detectors JUNO OCCUPANCY method 

分 类 号：O572.2[理学—粒子物理与原子核物理]