Conserved currents and gauge invariance in Yang-Mills theory
Glenn Barnich, Friedemann Brandt, Marc Henneaux
Abstract
It is shown that in the absence of free abelian gauge fields, the conserved currents of (classical) Yang-Mills gauge models coupled to matter fields can be always redefined so as to be gauge invariant. This is a direct consequence of the general analysis of the Wess-Zumino consistency condition for Yang-Mills theory that we have provided recently.
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