Speaker
Dr
Orlando Oliveira
(University of Coimbra)
Description
The compatibility of the results from the Gribov-Zwanziger tree level prediction and lattice simulations, using large statistical ensembles, for the Landau gauge gluon propagator are investigated, thereby complementing earlier work using small-scale statistics. 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, implying particular relations between certain possible d=2 condensates. 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 author
Dr
Orlando Oliveira
(University of Coimbra)
