| 手征–夸克耦合与双重子结构 |
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| 引用本文： | 袁秀青,张宗烨,余友文,沈彭年.手征–夸克耦合与双重子结构[J].中国物理 C,1998,22(8):718-725. |
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| 作者姓名： | 袁秀青 张宗烨 余友文 沈彭年 |
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| 作者单位： | 中国科学院高能物理研究所 |
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| 摘 要： | 运用SU(3)手征夸克模型,系统地研究了H,d*和d＇三个六夸克体系的结构,分析了SU(3)手征场和矢量耦合禁闭势等非微扰效应对三种六夸克态能量的影响.结果发现,SU(2)手征场的耦合,对形成六夸克态是有利的,但是扩大到SU(3)手征对称,则由于这些手征场的“云”,对六夸克系统形成束缚的双重子态起到了限制的作用,矢量耦合禁闭势有利于H的形成,而对d*则相反.
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| 关 键 词： | SU(3)手征夸克模型 双重子 矢量耦合 |
Structure of Dibaryon in Chiral-Quark Model |
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| Yun Xiuqing Zhang Zongye Yu Youwen Shen Pengnian.Structure of Dibaryon in Chiral-Quark Model[J].High Energy Physics and Nuclear Physics,1998,22(8):718-725. |
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| Authors: | Yun Xiuqing Zhang Zongye Yu Youwen Shen Pengnian |
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| Institution: | Institute of High. EnergyPhysics CAS Beijing 100039 |
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| Abstract: | The SU(3) chiral quark model is used to invesdgate the structures of three six-quark systems-H dibaryon d' and d' states. The non-perturbative QCD effects such as SU(3) chairl field coupling and the vector-coupling effect on the confinement potential are studied. The results show that the .(2) chiral field coupling makes six-quark system more stable, but the SU(3) chiral"cloud" is not favourable to form the dibaryons |
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| Keywords: | SU(3) chiralquark model dibaryonvector-coupling |
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