论文标题
筛选理论中的尼尔森身份
The Nielsen identities in screened theories
论文作者
论文摘要
在Yang-Mills理论的筛选大规模扩张的形式上，为Gluon Nielsen的身份得出了一环的表达。在严格的扰动环境中讨论了杆和残基的量规参数独立性，更普遍地是在扩展的重新召集方案中讨论的。近似重新召集方案无法实现确切的正式证明，但是收集了一些证据以与以前的数值研究一致地具有确切的阶段不变性。
One-loop explicit expressions are derived for the gluon Nielsen identity in the formalism of the screened massive expansion for Yang-Mills theory. The gauge-parameter-independence of the poles and residues is discussed in a strict perturbative context and, more generally, in extended resummation schemes. No exact formal proof was reached by the approximate resummation schemes, but some evidence is gathered in favor of an exact invariance of the phase, consistently with previous numerical studies.
