Testing the heating method with perturbation theory
High Energy Physics - Lattice
2009-10-28 v1
Abstract
The renormalization constants present in the lattice evaluation of the topological susceptibility can be non-perturbatively calculated by using the so-called heating method. We test this method for the non-linear -model in two dimensions. We work in a regime where perturbative calculations are exact and useful to check the values obtained from the heating method. The result of the test is positive and it clarifies some features concerning the method. Our procedure also allows a rather accurate determination of the first perturbative coefficients.
Cite
@article{arxiv.hep-lat/9512010,
title = {Testing the heating method with perturbation theory},
author = {B. Alles and M. Beccaria and F. Farchioni},
journal= {arXiv preprint arXiv:hep-lat/9512010},
year = {2009}
}
Comments
15 pages, LaTeX file, needs RevTeX style. Tarred, gzipped, uuencoded