6 papers
Using the Landau gauge gluon propagator to set the lattice physical scales and understanding the finite size effects
Orlando Oliveira, Paulo J Silva
A crucial step in extracting physical predictions from lattice QCD simulations is the scale setting, i.e. the determination of the lattice spacing () in physical units. Herein,…
Infrared divergences and the photon mass in QED
Orlando Oliveira
The infrared properties of QED are investigated within the framework of the Dyson-Schwinger equations. Our study finds that, independently of the value of the coupling constant, re…
The four-gluon and ghost-gluon vertices in the Landau gauge from lattice simulations
Nuno Brito, Manuel Colaço, Orlando Oliveira +1
The computation of the four-gluon and ghost-gluon vertices in the Landau gauge using high statistical lattice ensembles for and volumes is addressed. For the four-glu…
Center-symmetric Landau gauge, the deconfinement transition and the gluon propagator as seen in lattice QCD
Duifje Maria van Egmond, Orlando Oliveira, Urko Reinosa +3
We address the lattice computation of the gluon propagator in the center-symmetric Landau gauge. After discussing a proper lattice implementation of the center-symmetric Landau gau…
The center-symmetric Landau gauge meets the lattice
Duifje Maria van Egmond, Orlando Oliveira, Urko Reinosa +3
A lattice implementation of the recently introduced center-symmetric Landau gauge is discussed and its predictions confronted with numerical Monte Carlo simulations. It is shown th…
High statistical computation of the Landau gauge ghost-gluon vertex
Nuno Brito, Orlando Oliveira, Paulo J. Silva
The lattice computation of the one-particle irreducible ghost-gluon Green function in the Landau gauge is revisited with a set of large gauge ensembles. The large statistical ensem…