| Is Kano-Nucleon Interaction Consistent with Pentaquark θ^＋ |
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| 作者姓名： | 邓成荣 平加伦 |
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| 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 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 90503011. |
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| 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.
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| 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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