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Is Kano-Nucleon Interaction Consistent with Pentaquark θ^+
作者姓名:邓成荣 平加伦
作者单位:[1]Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210097 [2]School of Physics and Microelectronics, Shandong University, Jinan 250100
基金项目:Supported by the National Natural Science Foundation of China under Grant No 90503011.
摘    要:The quark-delocalization colour-screening model is employed to calculate the effective potential between nucleon and kaon. The results show that the potentials are attractive in the I = 0 channel and repulsive in the I = 1 channel. The interactions are very weak between K^+n or K^0p due to the cancellation between I = 0 and I = 1. It is possible to have a high s-wave resonance (1615 MeV), but the width may be too wide to be observed in the experiments.

关 键 词:有效位势 交互作用 谐振 原子核物理学 夸克
收稿时间:2005-06-30
修稿时间:2005-06-30
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