Simulation software of the JUNO experiment
Tao Lin, Yuxiang Hu, Miao Yu, Haosen Zhang, S.C. Blyth, Wang Yaoguang, Haoqi Lu, C. Jollet, J. P. A. M. de André, Z. Y. Deng, Guofu Cao, Fengpeng An, P. Chimenti, Xiao Fang, Yuhang Guo, Wenhao Huang, Xingtao Huang, Rui Li, Teng Li, Weidong Li, Xinying Li, Yankai Liu, A. Meregaglia, Z. Qian, Yuhan Ren, Akira Takenaka, Liangjian Wen, Jilei Xu, Z. You, Feiyang Zhang, Yan Zhang, Yumei Zhang, J. Zhu, J. H. Zou
Abstract
Abstract The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose experiment, under construction in southeast China, that is designed to determine the neutrino mass ordering and precisely measure neutrino oscillation parameters. Monte Carlo simulation plays an important role for JUNO detector design, detector commissioning, offline data processing, and physics processing. The JUNO experiment has the world’s largest liquid scintillator detector instrumented with many thousands of PMTs. The broad energy range of interest, long lifetime, and the large scale present data processing challenges across all areas. This paper describes the JUNO simulation software, highlighting the challenges of JUNO simulation and solutions to meet these challenges, including such issues as support for time-correlated analysis, event mixing, event correlation and handling the simulation of many millions of optical photons.