Conserved currents and gauge invariance in Yang-Mills theory

Glenn Barnich, Friedemann Brandt, Marc Henneaux

Published 1994-11-28, updated 1995-01-27Version 2

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.