| 重夸克偶素中的非微扰QCD效应 |
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| 引用本文： | 梁伟红 沈彭年. 重夸克偶素中的非微扰QCD效应[J]. 宁夏大学学报(自然科学版), 1998, 19(4): 364-366 |
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| 作者姓名： | 梁伟红 沈彭年 |
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| 作者单位： | 广西师范大学物理系(梁伟红)，中国科学院高能物理研究所(柳继锋)，中国科学院理论物理研究所(沈彭年)，南开大学物理系(李学潜) |
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| 摘 要： | 在势模型的框架下，通过粲夸克偶素及底夸克偶素能谱的计算，研究了由高维夸克胶子凝聚描述的非微扰ＱＣＤ效应结果表明：六维算符真空凝聚仍有明显的贡献；单圈微扰修正在散射和湮灭过程中的贡献几乎相同，但与同一级的非微扰ＱＣＤ的贡献符号相反
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| 关 键 词： | 夸克，胶子，真空凝聚，非微扰QCD效应，重夸克偶素系 |
NON PERTURBATIVE QCD EFFECT IN HEAVY QUARKONIUM SYSTEM * |
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| Liang Weihong ) Liu Jifeng ) Shen Pengnian ),) Li Xueqian ) ). NON PERTURBATIVE QCD EFFECT IN HEAVY QUARKONIUM SYSTEM *[J]. Journal of Ningxia University(Natural Science Edition), 1998, 19(4): 364-366 |
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| Authors: | Liang Weihong ) Liu Jifeng ) Shen Pengnian ) ) Li Xueqian ) ) |
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| Affiliation: | Liang Weihong 1) Liu Jifeng 1) Shen Pengnian 2),3) Li Xueqian 4) 1)Department of Physics,Guangxi Normal University,541004,Guilin,China, 2)Institute of High Energy Physics,the Chinese Academy of Sciences,100039,Beijing,Ch |
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| Abstract: | In the potential model, non perturbative QCD effect described by using higher dimensional quarkgluon condensates is studied via c and b spectra. It is shown that the vacuum condensates of d=6 operators still have notable effects. The perturbative contributions in the scattering and annihilation processes are almost the same. These contributions are in different signs in comparison with the non perturbative contributions from d=4 operator vacuum condensates. |
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| Keywords: | quark gluon vacuum condensate non perturbative QCD effect heavy quarkonium |
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