Soft breaking of BRST symmetry and gauge dependence

Details Soft breaking of BRST symmetry and gauge dependence Soft breaking of BRST symmetry and gauge dependence

2012-01-23

arxiv.org/abs/1201.4720v2

Modern Physics Letters A. Vol. 27, No. 13 (2012) 1250067 1-12

Physics

High Energy Physics

High Energy Physics - Theory

1+11 pages, presentation improved, comparison with the results from the paper arXiv:1108.4820 [hep-th] clarified in details

Scientific paper

10.1142/S0217732312500678

We continue investigation of soft breaking of BRST symmetry in the Batalin-Vilkovisky (BV) formalism beyond regularizations like dimensional ones used in our previous paper [JHEP 1110 (2011) 043, arXiv:1108.4820 [hep-th]]. We generalize a definition of soft breaking of BRST symmetry valid for general gauge theories and arbitrary gauge fixing. The gauge dependence of generating functionals of Green's functions is investigated. It is proved that such introduction of a soft breaking of BRST symmetry into gauge theories leads to inconsistency of the conventional BV formalism.

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