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Originalpublikation
Lavrov, Peter; Lechtenfeld, Olaf; Reshetnyak, Alexander: Is soft breaking of BRST symmetry consistent?. In: Journal of High Energy Physics 2011 (2011), Nr. 10, 43. DOI: https://doi.org/10.1007/JHEP10(2011)043
A definition of soft breaking of BEST symmetry in the field-antifield formalism is proposed, valid for general gauge theories and arbitrary gauge fixing. The Ward identities for the generating functionals of Green's functions are derived, and their gauge dependence is investigated. We discuss the Gribov-Zwanziger action to the one-parameter family of gauges. It is argued that gauge theories with a soft breaking of BEST symmetry are inconsistent.