| 单胶子交换和单π交换夸克模型中核子负宇称共振态的电磁跃迁振幅(英文) |
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| 引用本文： | 董宇兵,何军.单胶子交换和单π交换夸克模型中核子负宇称共振态的电磁跃迁振幅(英文)[J].原子核物理评论,2004,21(2):157-158. |
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| 作者姓名： | 董宇兵 何军 |
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| 作者单位： | 中国科学院高能物理研究所, 北京100039 |
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| 基金项目： | 国家自然科学基金资助项目(10075056,90103020)，中国科学院知识创新基础研究重要方向项目(KC2SWN02)，中国科学院理论物理研究所基金资助项目~~ |
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| 摘 要： | 分别利用单胶子交换和单π交换夸克模型计算了核子负宇称激发态的电磁跃迁振幅,讨论了两个模型所给出的不同的组态混合角. 结果表明, 单胶子交换模型所给出的重子波函数比单π交换夸克模型的波函数更为合理.Electromagnetic transition amplitudes of negative parity resonances are calculated based on one pion exchange (OPE) model and one gluon exchange (OGE) model, respectively. The configuration mixing caused by the hyperfine interactions of the two models is discussed. Calculated results for the amplitudes indicate that baryon wave functions of OGE are more reasonable than those of OPE.
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| 关 键 词： | 组份夸克模型 组态混合 跃迁振幅 |
| 收稿时间： | 1900-01-01 |
Electromagnetic Transition Amplitudes of Nucleon Negative-parity Resonance by OPE and OGE Quark Models |
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| DONG Yu-bing,HE Jun.Electromagnetic Transition Amplitudes of Nucleon Negative-parity Resonance by OPE and OGE Quark Models[J].Nuclear Physics Review,2004,21(2):157-158. |
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| Authors: | DONG Yu-bing HE Jun |
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| Institution: | Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Electromagnetic transition amplitudes of negative-parity resonances are calculated based on one-pion exchange (OPE) model and one-gluon exchange (OGE) model, respectively. The configuration mixing caused by the hyperfine interactions of the two models is discussed. Calculated results for the amplitudes indicate that baryon wave functions of OGE are more reasonable than those of OPE. |
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| Keywords: | constituent quark model configuration mixing transition amplitude |
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