# Gauge Invariance and Gauge-Factor Group in Causal Yang-Mills Theory

@article{Emmenegger2001GaugeIA, title={Gauge Invariance and Gauge-Factor Group in Causal Yang-Mills Theory}, author={Nicolas Emmenegger}, journal={arXiv: High Energy Physics - Theory}, year={2001} }

In the present work the gauge invariance of causal Yang-Mills theory will be proven with the aid of the gauge-factor group. For that purpose it must be shown, that the operator valued distributions T_n and D_n(ret) occurring in the causal S-matrix construction can be written, after applying the gauge variation d_Q, as a divergence. Since merely local terms lead to gauge destroying expressions, one has to focus on them exclusively. In the first part of the work the local gauge-factor group will…

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