论文标题
Landau量规Yang-Mills理论的相关函数
Correlation functions of Landau gauge Yang-Mills theory
论文作者
论文摘要
Yang-Mills理论在Landau仪表中的相关函数是根据其运动方程计算得出的。所采用的设置完全不含参数，并且在错误之内导致了与Ghost和Gluon传播器以及Ghost-Gluon和Three Trix-Gluon顶点的相应晶格结果的良好定量一致性。还计算了四绿色顶点。目前的设置首次允许在Gluon繁殖器Dyson-Schwinger方程中唯一的二次差异减法。因此，由于使用模型或辅助解决方法，没有可能出现的歧义。此外，描述了结果的几个自我测试，可以以自一致的方式评估截断误差。这使得有关如何确定本设置的局限性并发展未来改进的新观点。
Correlation functions of Yang-Mills theory in the Landau gauge are calculated from their equations of motion. The employed setup is completely parameter free and leads, within errors, to good quantitative agreement with corresponding lattice results for the ghost and gluon propagators as well as the ghost-gluon and three-gluon vertices. Also the four-gluon vertex is calculated. The present setup allows for the first time for a unique subtraction of quadratic divergences in the gluon propagator Dyson-Schwinger equation. Thus, there are no ambiguities which can arise due to the use of models or auxiliary workarounds. In addition, several self-tests of the results are described that allow assessing the truncation error in a self-consistent way. This enables a new perspective on how to identify limitations of the present setup and develop future improvements.
