机构地区：[1]Pontificia Universidad Católica de Chile,Santiago,Chile [2]IPHC,Universitéde Strasbourg,CNRS/IN2P3,F-67037 Strasbourg,France [3]Pakistan Institute of Nuclear Science and Technology,Islamabad,Pakistan [4]INFN Catania and Dipartimento di Fisica e Astronomia dell Universitàdi Catania,Catania,Italy [5]East China University of Science and Technology,Shanghai,China [6]University of Science and Technology of China,Hefei,China [7]Joint Institute for Nuclear Research,Dubna,Russia [8]INFN Sezione di Milano and Dipartimento di Fisica dell Universitàdi Milano,Milano,Italy [9]Department of Physics,Faculty of Science,Chulalongkorn University,Bangkok,Thailand [10]IJCLab,UniversitéParis-Saclay,CNRS/IN2P3,91405 Orsay,France [11]Department of Physics and Earth Science,University of Ferrara and INFN Sezione di Ferrara,Ferrara,Italy [12]INFN Milano Bicocca and University of Milano Bicocca,Milano,Italy [13]INFN Sezione di Padova,Padova,Italy [14]III.Physikalisches Institut B,RWTH Aachen University,Aachen,Germany [15]Eberhard Karls Universität Tübingen,Physikalisches Institut,Tübingen,Germany [16]Institute of High Energy Physics,Beijing,China [17]SUBATECH,Universitéde Nantes,IMT Atlantique,CNRS-IN2P3,Nantes,France [18]Univ.Bordeaux,CNRS,LP2I,UMR 5797,F-33170 Gradignan,France [19]Department of Physics,National Taiwan University,Taipei [20]Dipartimento di Fisica e Astronomia dell’Universitàdi Padova and INFN Sezione di Padova,Padova,Italy [21]University of Roma Tre and INFN Sezione Roma Tre,Roma,Italy [22]Aix Marseille Univ,CNRS/IN2P3,CPPM,Marseille,France [23]Wuhan University,Wuhan,China [24]INFN Milano Bicocca and Politecnico of Milano,Milano,Italy [25]National United University,Miao-Li [26]Dongguan University of Technology,Dongguan,China [27]Tsinghua University,Beijing,China [28]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou,China [29]Institute of Physics,National Yang Ming Chiao Tung University,Hsinchu [30]North China Electric Power University,Beijing,China [31]Sun Yat-Sen University,Guangzhou,China [
出 处：《Chinese Physics C》2023年第11期7-22,共16页中国物理C（英文版）
基 金：supported by the Chinese Academy of Sciences;the National Key R&D Program of China;the CAS Center for Excellence in Particle Physics;Wuyi University;the Tsung-Dao Lee Institute of Shanghai Jiao Tong University in China;the Institut National de Physique Nucléaire et de Physique de Particules (IN2P3) in France;the Istituto Nazionale di Fisica Nucleare (INFN) in Italy;the Italian-Chinese collaborative research program MAECI-NSFC;the Fond de la Recherche Scientifique (F.R.S-FNRS);FWO under the "Excellence of Science-EOS" in Belgium;the Conselho Nacional de Desenvolvimento Científico e Tecnològico in Brazil;the Agencia Nacional de Investigacion y Desarrollo in Chile;the Charles University Research Centre;the Ministry of Education,Youth,and Sports in Czech Republic;the Deutsche Forschungsgemeinschaft (DFG);the Helmholtz Association;the Cluster of Excellence PRISMA+ in Germany;the Joint Institute of Nuclear Research (JINR);Lomonosov Moscow State University in Russia;the joint Russian Science Foundation (RSF);National Natural Science Foundation of China (NSFC) research program;the MOST and MOE in Taiwan,China;the Chulalongkorn University;Suranaree University of Technology in Thailand;the University of California at Irvine in USA
摘 要：The Jiangmen Underground Neutrino Observatory(JUNO)is a large liquid scintillator detector designed to explore many topics in fundamental physics.In this study,the potential of searching for proton decay in the p→νK^(+)mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification.Moreover,the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals.Based on these advantages,the detection efficiency for the proton decay via p→νK^(+)is 36.9%±4.9%with a background level of 0.2±0.05(syst)±0.2(stat)events after 10 years of data collection.The estimated sensitivity based on 200 kton-years of exposure is 9.6×1033 years,which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies.
关 键 词：proton decay grand unified theories JUNO liquid scintillator detector
分 类 号：O572.341[理学—粒子物理与原子核物理]
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