Gauge Independence of the S-Matrix in the Causal Approach

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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

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High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/185624

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-th/9710093
 http://arxiv.org/abs/hep-th/9710093
 J.Phys.A31:1563-1579,1998
 doi:10.1088/0305-4470/31/6/008

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