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

作　　者：CHANGChao-Hsi PANGHou-Rong 

机构地区：[1]InstituteofTheoreticalPhysics,theChineseAcademyofSciences,P.O.Box2735,Beijing100080,China／／CCAST（WorldLaboratory）,P.O.Box8730,Beijing100080,China [3]DepartmentofPhysics,SoutheastUniversity,Nanjing210096,China

出　　处：《Communications in Theoretical Physics》2005年第2期275-282,共8页理论物理通讯（英文版）

基　　金：国家自然科学基金

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-+.

关 键 词：nucleon-antinucleon effective interaction multiquark system constituentquark model 

分 类 号：O572.33[理学—粒子物理与原子核物理]