| One-loop QCD contribution to the potential of Q |
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| 作者姓名： | 刘产全 赵树民 张建军 杨宝柱 黄德宝 |
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| 作者单位： | Department of Physics and Technology;Hebei University; |
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| 基金项目： | Supported by National Natural Science Foundation of China (10947167, 11047002, 11047120); Fund of Education Department of Hebei Province (2007409) |
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| 摘 要： | Without the non-relativistic approximation in one-loop function, the dominating one-loop contribution to the quark-antiquark potential is studied numerically in terms of perturbative Quantum Chromo Dynamics (QCD). For Coulomb-like potential, the ratio of the one-loop correction to the tree diagram contribution is presented, whose absolute value is about 20%. Our result is consistent with the analysis that the one-loop contribution should be suppressed by a factor αsπ to the leading order contribution. This ...
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