# The 34th International Symposium on Lattice Field Theory (Lattice 2016)

Jul 24 – 30, 2016
Highfield Campus, University of Southampton
Europe/London timezone

## Further Study of BRST-Symmetry Breaking on the Lattice

Jul 26, 2016, 7:00 PM
1h
Highfield Campus, University of Southampton

#### Highfield Campus, University of Southampton

Highfield Campus, Southampton SO17 1BJ, UK
Poster Vacuum Structure and Confinement

### Speaker

Mr Attilio Cucchieri (University of São Paulo)

### Description

We evaluate the so-called Bose-ghost propagator in minimal Landau gauge, for the SU(2) case in four dimensions. We consider lattice volumes up to $120^4$ and physical lattice extents up to 13.5 fm. We investigate discretization effects, as well as the infinite-volume and continuum limits. A nonzero value for this quantity provides direct evidence of BRST-symmetry breaking, related to the restriction of the functional measure to the first Gribov region.

### Primary authors

Mr Attilio Cucchieri (University of São Paulo) Tereza Mendes (University of São Paulo)

 Poster