Jul 26 – 30, 2021
US/Eastern timezone

Another look at the three-gluon vertex in the minimal Landau gauge

Jul 29, 2021, 5:30 AM
Oral presentation Vacuum Structure, Confinement, and Chiral Symmetry Vacuum Structure, Confinement, and Chiral Symmetry


Paulo Silva (University of Coimbra)


The lattice three-gluon vertex in the Landau gauge is revisited using a large physical volume $\sim(8\, \text{fm})^4$ and a large statistical ensemble. The improved calculation explores the symmetries of the hypercubic lattice to reduce the statistical uncertainties and to address the evaluation of the lattice artefacts. In particular we focus on the low energy behaviour of the vertex and look at evidences for (or not for) a change of sign and its relation with ghost dominance.

Primary authors

Guilherme Catumba (IFIC - Valencia) Orlando Oliveira (University of Coimbra) Paulo Silva (University of Coimbra)

Presentation materials