Center Regions as a Solution to the Gribov Problem of the Center Vortex Model

The center vortex model, capable of explaining confinement and chiral symmetry breaking, has been plagued by the lattice equivalent Gribov copies: different maxima gauge functional lead to predictions string tension. It is possible resolve this problem using regions, loops evaluating elements, as guide for fixing procedure. success approach was already shown, but algorithms came with an arbitrary free parameter. In recent development parameter fixed, even improving results.