标题： 裸格点耦合与MSbar耦合之间的关系计算在SU(N)规范理论中到两环阶 显示英文标题

标题： Computation of the relation between the bare lattice coupling and the MSbar coupling in SU(N) gauge theories to two loops

摘要： MSbar耦合在SU(N)规范理论中关于裸格点耦合的摄动展开被扩展到两环阶。 我们的结果的讨论已经发表在其他地方。 我们在这里详细描述计算过程。 它依赖于背景场技术以及一种最近引入的坐标空间方法来计算格点费曼积分。 显示英文摘要

摘要： The perturbation expansion of the MSbar coupling in the SU(N) gauge theory in powers of the bare lattice coupling is extended to two-loop order. A discussion of our results has already been published elsewhere. We here describe the calculation in some detail. It relies on the background field technique and a recently introduced coordinate space method to evaluate lattice Feynman integrals.