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

24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

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

26 Jul 2016, 19:00
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)

### Presentation Materials

 Poster
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