On Possible S-Wave Bound States for an N-↑N System Within a Constituent Quark Model

作     者：CHANGChao-Hsi PANGHou-Rong 

作者机构：InstituteofTheoreticalPhysicstheChineseAcademyofSciencesP.O.Box2735Beijing100080China／／CCAST（WorldLaboratory）P.O.Box8730Beijing100080China DepartmentofPhysicsSoutheastUniversityNanjing210096China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2005年第43卷第2期

页      面：275-282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：国家自然科学基金 

主　　题：nucleon-antinucleon effective interaction multiquark system constituentquark model 

摘      要：We try to apply a constituent quark model (a variety chiral constituent quark model) and the resonating group approach for the multi-quark problems to compute the effective potential between the NN- in S-wave (the quarks in the nucleons N and N-, and the two nucleons relatively as well, are in S wave) so as to see the possibility if there may be a tight bound state of six quarks as indicated by a strong enhancement at threshold of pp- in J/ψ and B decays. The effective potential which we obtain in terms of the model and approach shows if the experimental enhancement is really caused by a tight S-wave bound state of six quarks, then the quantum number of the bound state is very likely to be I = 1, JPC= 0-+.