Split Dimensional Regularization for the Coulomb Gauge

Details Split Dimensional Regularization for the Coulomb Gauge Split Dimensional Regularization for the Coulomb Gauge

1996-01-10

arxiv.org/abs/hep-th/9601046v2

Nucl.Phys. B475 (1996) 469-483

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, 2 figures, 1 table, 72 references. This Replaced version clarifies why the Coulomb gauge requires a new type of regu

Scientific paper

10.1016/0550-3213(96)00299-4

A new procedure for regularizing Feynman integrals in the noncovariant Coulomb gauge is proposed for Yang-Mills theory. The procedure is based on a variant of dimensional regularization, called split dimensional regularization, which leads to internally consistent, ambiguity-free integrals. It is demonstrated that split dimensional regularization yields a one-loop Yang-Mills self-energy that is nontransverse, but local. Despite the noncovariant nature of the Coulomb gauge, ghosts are necessary in order to satisfy the appropriate Ward/BRS identity. The computed Coulomb-gauge Feynman integrals are applicable to both Abelian and non-Abelian gauge models. PACS: 11.15, 12.38.C

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