On Possible S-Wave Bound States for

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

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-+.

作 者： CHANG Chao-Hsi PANG Hou-Rong   作者单位： CHANG Chao-Hsi(Institute of Theoretical Physics, the Chinese Academy of Sciences, P.O. Box 2735, Beijing 100080, China;CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China)

PANG Hou-Rong(Department of Physics, Southeast University, Nanjing 210096, China) 

刊 名： 理论物理通讯（英文版）  ISTIC SCI 英文刊名： COMMUNICATIONS IN THEORETICAL PHYSICS  年，卷(期)： 2005 43(2)  分类号：   关键词： nucleon-antinucleon effective interaction   multiquark system   constituent quark model  

【On Possible S-Wave Bound States for 】相关文章：

Taxis are cheaper in Beijing than in the States北京出租相对便宜05-04

THE CHARACTERISTICS OF THUNDERSTORM FREQUENCY VARIATION AND THEIR POSSIBLE RELATION WITH THE ADJUSTMENT OF CROP DISTRIBU04-27

Optimal error bound of restricted Monte Carlo integration on anisotropic Sobolev classes04-26

Bioavailability of bound residue derived from 14 C-labeled chlorsulfuron in soil and its mechanism of phytotoxicity04-26

Identification of the bound residue composition derived from 14C-labeled chlorsulfuron in soil by using LC-MS and isotop04-26