Seminar----Institute of Theoretical Physics，Chinese Academy of Sciences

Institute of Theoretical Physics
Chinese Academy of Sciences
Key Laboratory of Theoretical Physics
Seminar
Title 题目	The observed Omega_c^0 resonances as pentaquark states
Speaker 报告人	C.S. An
Affiliation 所在单位	Southwest University
Date 日期	15:00, Aug 9 (Wednesday), 2017
Venue 地点	Room 322, ITP
Abstract 摘要	In present work, we investigate the spectrum of several low-lying sscqq^bar pentaquark configurations employing the constituent quark model, within which the hyperfine interaction between quarks is taken to be mediated by Goldstone boson exchange. Our numerical results show that four sscqq^bar configurations with J^P = 1/2^− or J^P = 3/2^− lie at energies very close to the recently observed five Omega_c^0 states by LHCb collaboration, this indicates that the sscqq^bar pentaquark configurations may form sizable components of the observed Omega_c^0 resonances.
Contact person 所内联系人	Bing-Song Zou