18-23 March 2018
Florianopolis, Brazil
America/Sao_Paulo timezone

High Precision Statistical Landau Gauge Lattice Gluon Propagator Computation vs. the Gribov-Zwanziger approach

Not scheduled
1h
Florianopolis, Brazil

Florianopolis, Brazil

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)

Presentation materials

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