Non-perturbative BRST invariance and what it might be good for
High Energy Physics - Lattice
2009-11-07 v1
Abstract
We construct a local, gauge-fixed, lattice Yang-Mills theory with an exact BRST invariance, and with the same perturbative expansion as the standard Yang-Mills theory. The ghost sector, and some of its BRST transformation rules, are modified to get around Neuberger's theorem. A special term is introduced in the action to regularize the Gribov horizons, and the limit where the regulator is removed is discussed. We conclude with a few comments on what might be the physical significance of this theory. We speculate that there may exist new strong-interaction phases apart from the anticipated confinement phase.
Cite
@article{arxiv.hep-lat/0209003,
title = {Non-perturbative BRST invariance and what it might be good for},
author = {Yigal Shamir and Maarten Golterman},
journal= {arXiv preprint arXiv:hep-lat/0209003},
year = {2009}
}
Comments
3 pages, Lattice2002(theoretical), For additional technical details see ref. 1