An exact nilpotent non-perturbative BRST symmetry for the Gribov-Zwanziger action in the linear covariant gauge
M.A.L. Capri, D. Dudal, D. Fiorentini, M.S. Guimaraes, I.F. Justo,, A.D. Pereira, B.W. Mintz, L.F. Palhares, R.F. Sobreiro, S.P. Sorella
TL;DR
This paper establishes a non-perturbative, exact nilpotent BRST symmetry for the Gribov-Zwanziger action in the Landau gauge and proposes a BRST invariant solution for gauge fixing ambiguity in the linear covariant gauge.
Contribution
It introduces a novel non-perturbative BRST symmetry for the Gribov-Zwanziger action and a BRST invariant approach to resolve gauge fixing ambiguities.
Findings
Existence of a non-perturbative nilpotent BRST symmetry in Landau gauge
BRST invariant resolution for gauge fixing ambiguity in linear covariant gauge
Framework for consistent gauge fixing in non-perturbative regimes
Abstract
We point out the existence of a non-perturbative exact nilpotent BRST symmetry for the Gribov-Zwanziger action in the Landau gauge. We then put forward a manifestly BRST invariant resolution of the Gribov gauge fixing ambiguity in the linear covariant gauge.
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