Gauge Independence of the S-Matrix in the Causal Approach

Abstract

The gauge dependence of the time-ordered products for Yang-Mills theories is analysed in perturbation theory by means of the causal method of Epstein and Glaser together with perturbative gauge invariance. This approach allows a simple inductive proof of the gauge independence of the physical S-matrix.

19 pages, latex, 1 figure

References in corpus (1)

• On Gauge Invariance and Spontaneous Symmetry Breaking

Cited by in corpus (9)

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