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arXiv 0810.2526hep-ph
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QCD的红外行为

Infrared behavior of QCD from the Dyson-Schwinger formalism

Christian S. Fischer

摘要:

我们讨论了两种不同类型的朗道规范杨-米尔斯理论的红外解的性质,并认为其中之一(“标度解”)。我们还澄清了以前获得的结果从DSE的四环面的状态。本文基于Yang-Mills理论的标度解讨论了夸克禁闭与动力学手征对称性破缺之间的关系。夸克-胶子顶点的红外奇异性使得$U_A$(1)问题可以按照科古特和萨斯金德很久以前提出的机制来解决。

英文摘要:

We discuss the properties of two different types of infrared solutions of Landau gauge Yang-Mills theory and argue for one of these (the 'scaling solution'). We furthermore clarify the status of previously obtained results from DSEs on a four-torus. Including quarks we discuss a relation between confinement and dynamical chiral symmetry breaking based on the scaling solution of Yang-Mills theory. An infrared singularity in the quark-gluon vertex allows for a solution of the $U_A$(1) problem along the lines of a mechanism suggested by Kogut and Susskind long ago.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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