# The 38th International Symposium on Lattice Field Theory

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
15m
Oral presentation Vacuum Structure, Confinement, and Chiral Symmetry

### Speaker

Paulo Silva (University of Coimbra)

### Description

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

 393_R1Vs_Paulo_Silva silva.pdf