SciPost Submission Page
Constraining the gauge-fixed Lagrangian in minimal Landau gauge
by Axel Maas
|As Contributors:||Axel Maas|
|Submitted by:||Maas, Axel|
|Submitted to:||SciPost Physics|
|Subject area:||High-Energy Physics - Theory|
A continuum formulation of gauge-fixing resolving the Gribov-Singer ambiguity remains a challenge. Finding a Lagrangian formulation of operational resolutions in numerical lattice calculations, like minimal Landau gauge, would be one possibility. Such a formulation will here be constrained by reconstructing the Dyson-Schwinger equation for which the lattice minimal-Landau-gauge ghost propagator is a solution. It is found that this requires an additional term. As a by-product new, high precision lattice results for the ghost-gluon vertex in three and four dimensions are obtained.