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arXiv 1408.3597hep-thhep-phnucl-th
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朗道规范中Faddeev-Popov算子的性质、物质禁闭和软BRST破缺

Properties of the Faddeev-Popov operator in the Landau gauge, matter confinement and soft BRST breaking

M. A. L. Capri, M. S. Guimaraes, I. F. Justo, L. F. Palhares, S. P. Sorella

摘要:

根据纯欧几里德规范理论的Gribov问题的发展和最近在Landau规范中Yang-Mills理论中BRST不变性的软破缺的晶格测量,我们考虑规范相互作用物质扇区中的非微扰特征及其与Faddeev-Popov算子一般性质的关系。BRST打破物质部门的签名提出了一个本地和可重正化的框架构建,容纳这个签名和预测非微扰的物质传播子是一致的,与现有的晶格数据的伴随标量和夸克。

英文摘要:

In light of the development of the Gribov issue for pure Euclidean gauge theories and of the recent lattice measurement of soft breaking of the BRST invariance in Yang-Mills theories in the Landau gauge, we consider non-perturbative features in the gauge-interacting matter sector and their relation with general properties of the Faddeev-Popov operator. A signature for BRST breaking in the matter sector is proposed and a local and renormalizable framework is constructed, accommodating this signature and predicting non-perturbative matter propagators that are consistent with available lattice data for adjoint scalars and quarks.

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