Constraining the gauge-fixed Lagrangian in minimal Landau gauge
High Energy Physics - Lattice
2020-05-06 v2 High Energy Physics - Phenomenology
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.
Keywords
Cite
@article{arxiv.1907.10435,
title = {Constraining the gauge-fixed Lagrangian in minimal Landau gauge},
author = {Axel Maas},
journal= {arXiv preprint arXiv:1907.10435},
year = {2020}
}
Comments
25 pages, 10 figures, 2 tables; v2: Added and expanded appendices with more details of the input data, revised and extended discussion, added references