Pc-like pentaquarks in a hidden strange sector

作     者：Hongxia Huang Xinmei Zhu Jialun Ping 

作者机构：Department of Physics and Jiangsu Key Laboratory for Numerical Simulation of Large Scale Complex Systems Nanjing Normal University Nanjing 210023 People’s Republic of China Department of Physics Yangzhou University Yangzhou 225009 People’s Republic of China 

出 版 物：《Physical Review D》 (Phy. Rev. D)

年 卷 期：2018年第97卷第9期

页      面：094019-094019页

核心收录：

基　　金：Natural Science Research of Jiangsu Higher Education Institutions of China, (16KJB140006) Natural Science Research of Jiangsu Higher Education Institutions of China National Natural Science Foundation of China, NSFC, (11535005, 11675080, 11775118) National Natural Science Foundation of China, NSFC 

主　　题：Hadron-hadron interactions Quark model 

摘      要：Analogous to the work of hidden charm molecular pentaquarks, we study possible hidden strange molecular pentaquarks composed of Σ (or Σ*) and K (or K*) in the framework of a quark delocalization color screening model. Our results suggest that the ΣK, ΣK*, and Σ*K* with IJP=1212− and ΣK*, Σ*K, and Σ*K* with IJP=1232− are all resonance states by coupling the open channels. The molecular pentaquark Σ*K with quantum numbers IJP=1232− can be seen as a strange partner of the LHCb Pc(4380) state. The possibility of identifying the resonances as nucleon resonances is proposed.