Perturbative Yang-Mills theory without Faddeev-Popov ghost fields

Abstract

A modifed Faddeev-Popov path integral density for the quantization of Yang-Mills theory in the Feynman gauge is discussed, where contributions of the Faddeev-Popov ghost fields are replaced by multi-point gauge field interactions. An explicit calculation to $O(g^2)$ shows the equivalence of the usual Faddeev-Popov scheme and its modified version.

5 pages, 1 table. Extended version accepted for publication in Physics Letters B

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