In this paper, one uses a damped potential to present a description of the running coupling constant of QCD in the confinement phase. Based on a phenomenological perspective for the Debye screening length, one compares the running coupling obtained here with both the Brodsky–de Téramond–Deur and the Richardson approaches. The results seem to indicate the model introduced here corroborate the Richardson approach. Moreover, the Debye screening mass in the confinement phase depends on a small parameter, which tends to vanish in the nonconfinement phase of QCD.

中文翻译：

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QCD的德拜长度和运行耦合：一种潜在的现象学方法

在本文中，使用阻尼电位来描述 QCD 在约束阶段的运行耦合常数。基于德拜筛选长度的现象学观点，将此处获得的运行耦合与 Brodsky-de Téramond-Deur 和 Richardson 方法进行了比较。结果似乎表明这里介绍的模型证实了理查森的方法。此外，约束阶段的德拜筛选质量取决于一个小参数，该参数在 QCD 的非约束阶段趋于消失。