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arXiv 0705.4107hep-th
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杨-米尔斯理论的非微扰方面

Non-perturbative aspects of Yang-Mills theories

R. F. Sobreiro

摘要:

在朗道规范下量子化的四维欧氏杨-米尔斯理论的一些非微扰方面进行了分析研究。特别地,我们研究了由于二维凝聚的存在而产生的胶子的动力学质量。这项研究是在杨-米尔斯行动的情况下,以及在Gribov-Zwanziger行动的情况下,在当地的复合算子技术的框架。进一步,研究了线性协变规范中的Gribov模糊性。

英文摘要:

Some nonperturbative aspects of Euclidean Yang-Mills theories in four dimensions, quantized in the Landau gauge, are analytically studied. In particular, we investigate the dynamical mass generation for the gluons due to the presence of dimension two condensates. This study is performed in the framework of the local composite operator technique in the case of the Yang-Mills action as well as in the case of the Gribov-Zwanziger action. Further, an investigation of the Gribov ambiguities in the linear covariant gauges is presented.

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