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)
