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arXiv · 1907.10435

Constraining the gauge-fixed Lagrangian in minimal Landau gauge

Axel Maas
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Abstract

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.

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Axel Maas. 2020-01-24. Constraining the gauge-fixed Lagrangian in minimal Landau gauge. https://doi.org/10.21468/scipostphys.8.5.071

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