Cutoff effects in the O(N) sigma model at large N
High Energy Physics - Lattice
2007-05-23 v1
Abstract
The computation of the step scaling function for the finite size mass-gap in the O(N) sigma model at large N is reviewed. Practically exact nonperturbative results become available for both finite and vanishing lattice spacing. We use them as a testbed to investigate standard procedures of continuum extrapolation in lattice field theory.
Cite
@article{arxiv.hep-lat/0509043,
title = {Cutoff effects in the O(N) sigma model at large N},
author = {Ulli Wolff and Francesco Knechtli and Bjoern Leder and Janos Balog},
journal= {arXiv preprint arXiv:hep-lat/0509043},
year = {2007}
}
Comments
6 pages, 2 figures, contribution of U.W. to Lat05, Dublin