Topological Density and Instantons on a Lattice
High Energy Physics - Lattice
2009-10-28 v1
Abstract
We present an update on the study of topological structure of QCD. Issues addressed include a comparison between the plaquette and the geometric methods of calculating the topological density. We show that the improved gauge action based on sqrt(3) blocking transformation suppresses the formation of topologically charged dislocations with low action. Using a cooling method we identify the instantons' location, estimate their size and density, and calculate the renormalization constant Z_Q for the plaquette method.
Cite
@article{arxiv.hep-lat/9501009,
title = {Topological Density and Instantons on a Lattice},
author = {Jeffrey Grandy and Rajan Gupta},
journal= {arXiv preprint arXiv:hep-lat/9501009},
year = {2009}
}
Comments
3 Pages, submitted to Proceedings of XII International Symposium on Lattice Field Theory (Lattice 94, Bielefeld). uuencoded tar file includes figures as TeXDraw (.tex) files