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Is soft breaking of BRST symmetry consistent?

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arxiv 1108.4820 v3 pith:6CZG35QN submitted 2011-08-24 hep-th math-phmath.MP

Peter Lavrov , Olaf Lechtenfeld , Alexander Reshetnyak This is my paper · ORCID
classification hep-thmath-phmath.MP
keywords gaugebreakingbrstsoftsymmetrytheoriesactionarbitrary
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A definition of soft breaking of BRST 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 for the one-parameter family of R_xi gauges. It is argued that gauge theories with a soft breaking of BRST symmetry are inconsistent.

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  1. Finiteness of the Yang-Mills-Chern-Simons action in linear covariant gauges by taking into account gauge copies

    hep-th 2025-02 conditional novelty 5.0 of 10

    Adding Gribov-copy removal and condensates to three-dimensional Yang-Mills-Chern-Simons theory in linear covariant gauges leaves the theory finite at all orders.

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