Zhao, LinLuo, WentaiBathe-Peters, LarsChen, ShaominChouaki, MouradDou, WeiGuo, LeiGuo, ZiyiHussain, GhulamLi, JinjingLiang, YeLiu, QianLuo, GuangQi, MingShao, WenhuiTang, JianWan, LinyanWang, ZheWu, YiyangXu, BendaXu, TongXu, WeiranYang, YuziYeh, MinfangZhang, AiqiangZhang, Bin2022-08-012022-08-0120221674-1137https://depositonce.tu-berlin.de/handle/11303/17277http://dx.doi.org/10.14279/depositonce-16057Solar, terrestrial, and supernova neutrino experiments are subject to muon-induced radioactive background. The China Jinping Underground Laboratory (CJPL), with its unique advantage of a 2400 m rock coverage and long distance from nuclear power plants, is ideal for MeV-scale neutrino experiments. Using a 1-ton prototype detector of the Jinping Neutrino Experiment (JNE), we detected 343 high-energy cosmic-ray muons and (7.86 3.97) muon-induced neutrons from an 820.28-day dataset at the first phase of CJPL (CJPL-I). Based on the muon-induced neutrons, we measured the corresponding muon-induced neutron yield in a liquid scintillator to be μ−1g−1cm2 at an average muon energy of 340 GeV. We provided the first study for such neutron background at CJPL. A global fit including this measurement shows a power-law coefficient of (0.75 0.02) for the dependence of the neutron yield at the liquid scintillator on muon energy.en530 Physikunderground laboratoryneutrino detectorcosmic-ray muonneutron yieldliquid scintillatorArticle2022-07-31