朗道规范量子色动力学中的红外行为与不动点
Infrared behavior and fixed points in Landau-gauge QCD.
作者信息
Pawlowski Jan M, Litim Daniel F, Nedelko Sergei, von Smekal Lorenz
机构信息
Institut für Theoretische Physik III, Universität Erlangen, Staudtstrasse 7, 91058 Erlangen, Germany.
出版信息
Phys Rev Lett. 2004 Oct 8;93(15):152002. doi: 10.1103/PhysRevLett.93.152002. Epub 2004 Oct 7.
We investigate the infrared behavior of gluon and ghost propagators in Landau-gauge QCD by means of an exact renormalization group equation. We explain how, in general, the infrared momentum structure of Green functions can be extracted within this approach. An optimization procedure is devised to remove residual regulator dependences. In Landau-gauge QCD this framework is used to determine the infrared leading terms of the propagators. The results support the Kugo-Ojima confinement scenario. Possible extensions are discussed.
我们通过精确重整化群方程研究朗道规范量子色动力学中胶子和鬼传播子的红外行为。我们解释了一般情况下如何在这种方法中提取格林函数的红外动量结构。设计了一种优化程序以消除残余的调节器依赖性。在朗道规范量子色动力学中，该框架用于确定传播子的红外主导项。结果支持久保-大岛禁闭情景。还讨论了可能的扩展。
Zotero 插件