Semi-inclusive lepto-production of hidden-charm exotic hadrons

作     者：杨智 郭奉坤 Zhi Yang;Feng-Kun Guo

作者机构：School of PhysicsUniversity of Electronic Science and Technology of ChinaChengdu 610054China Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China CAS Key Laboratoryof Theoretical PhysicsInstitute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2021年第45卷第12期

页      面：1-7页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Supported in part by the Chinese Academy of Sciences(CAS)(XDB34030000,QYZDB-SSW-SYS013) the National Natural Science Foundation of China(NS-FC)(11835015,12047503,11961141012,11847301) the Fundamental Research Funds for the Central Universities(2019CDJDWL0005) NSFC and the Deutsche Forschungsgemeinschaft(DFG)through the Sino-German Collaborative Research Center"Symmetries and the Emergence of Structure in QCD"(NSFC 12070131001,DFG Project-ID 196253076-TRR110) 

主　　题：hidden-charm exotic hadrons lepto-production 

摘      要：We investigate the semi-inclusive production of hidden-charm exotic states,including the X(3872),Z_(c),Zcs and pentaquark P_(c) states,in lepton-proton scattering *** hadrons are close to the thresholds of a pair of charm and anticharm hadrons and are assumed to possess a hadronic molecular structure as their main *** provide order-of-magnitude estimates of the cross sections,we use Pythia to simulate the short-distance productions of the constituent hadrons,which then rescatter to form exotic *** estimates for the X(3872)and Z_(c)(3900)^(±)states are not in conflict with the upper limits measured in the COMPASS experiment for the exclusive photoproduction *** results indicate that the considered hidden-charm states can be copiously produced at the proposed electron-ion colliders EicC and US-EIC.