Volume 336 - XIII Quark Confinement and the Hadron Spectrum (Confinement2018) - Posters
High Precision Statistical Landau Gauge Lattice Gluon Propagator Computation
D. Dudal, O. Oliveira, P. Silva*
*corresponding author
Full text: pdf
Pre-published on: September 12, 2019
Published on: September 26, 2019
Abstract
We report on results for the Landau gauge gluon propagator computed from large statistical ensembles and look at the compatibility of the results with the Gribov-Zwanziger tree level prediction for its refined and very refined versions. Our results show that the data is well described by the tree level estimate only up to momenta $p \lesssim 1$ GeV, while clearly favouring the so-called Refined Gribov-Zwanziger scenario. We also provide a global fit of the lattice data which interpolates between the above scenario at low momenta and the usual continuum one-loop renormalisation improved perturbation theory after introducing an infrared log-regularizing term.
DOI: https://doi.org/10.22323/1.336.0265
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