The U(1) Problem in Chiral Random Matrix Models
High Energy Physics - Lattice
2009-10-28 v1
Abstract
We show that conventional asymmetric chiral random matrix models (ChRMM), with a gaussian distribution in the asymmetry, provide for a screening of the topological charge and a resolution of the problem in the unquenched approximation. Our exact results to order are in agreement with numerical estimates using large ensembles of asymmetric ChRMM with gaussian distributions.
Keywords
Cite
@article{arxiv.hep-lat/9611012,
title = {The U(1) Problem in Chiral Random Matrix Models},
author = {Romuald A. Janik and Maciej A. Nowak and Gabor Papp and Ismail Zahed},
journal= {arXiv preprint arXiv:hep-lat/9611012},
year = {2009}
}
Comments
ReVTaeX, 9 pages with 2 EPS figures. Uses the feynmf package version 1.0 for Feynman graphs