Numerical evaluation of the Bose-ghost propagator in minimal Landau gauge on the lattice

@article{Cucchieri2016NumericalEO,
  title={Numerical evaluation of the Bose-ghost propagator in minimal Landau gauge on the lattice},
  author={Attilio Cucchieri and Tereza Mendes},
  journal={Physical Review D},
  year={2016},
  volume={94},
  pages={014505}
}
We present numerical details of the evaluation of the so-called Bose-ghost propagator in lattice minimal Landau gauge, for the SU(2) case in four Euclidean dimensions. This quantity has been proposed as a carrier of the confining force in the Gribov-Zwanziger approach and, as such, its infrared behavior could be relevant for the understanding of color confinement in Yang-Mills theories. Also, its nonzero value can be interpreted as direct evidence of BRST-symmetry breaking, which is induced… 
1 Citations

Constraining the gauge-fixed Lagrangian in minimal Landau gauge

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