Speaker
Paulo Silva
(Center for Physics, University of Coimbra)
Description
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 ≲1 GeV, while clearly favoring 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 renormalization improved perturbation theory after introducing an infrared log-regularizing term.
Primary authors
David Dudal
Orlando Oliveira
(University of Coimbra)
Paulo Silva
(Center for Physics, University of Coimbra)
