Σ-N Interactions and Binging Energy of Hypernucleus 4ΣHe
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摘要: 基于SU(3)夸克模型, 用共振群方法研究了两种理论下的Σ-N相互作用, 得到了它们的相互作用非定域位以及Σ超子与3He壳心核的相互作用势, 并在此基础上计算了4ΣHe基态结合能。 计算结果表明, SU(3)夸克模型能较好地描述两种理论下的ΣN相互作用及Σ超子与3He壳心核的相互作用势, 同时由其得到的 4ΣHe基态结合能也与实验值基本相吻合。
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关键词:
- SU(3)手征夸克模型 /
- 共振群 /
- 非定域位 /
- 结合能
Abstract: Based on the chiral SU(3) quark model, the nonlocal Σ-N interaction and Σ3 He core interaction are investigated with two theories by the resonating group method. Then the bound energy BΣ of hypernuclei 4ΣHe is calculated with the interaction. It is shown that the chiral SU(3) quark model can well describe not only the nonlocal ΣN interaction but also Σcore interaction in the frame of two theories. At the same time, our calculation result of the bound energy BΣ of 4ΣHe is in agreement with the experiment data basically too.-
Key words:
- chiral SU(3) quark model /
- resonating group method /
- nonlocal potential /
- binding energy
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