Two-loop critical mass for Wilson fermions
High Energy Physics - Lattice
2009-11-07 v1
Abstract
We have redone a recent two-loop computation of the critical mass for Wilson fermions in lattice QCD by evaluating Feynman integrals with the coordinate-space method. We present the results for different types of infrared regularization. We confirm both the previous numerical estimates and the power of the coordinate-space method whenever high accuracy is needed.
Keywords
Cite
@article{arxiv.hep-lat/0106013,
title = {Two-loop critical mass for Wilson fermions},
author = {Sergio Caracciolo and Andrea Pelissetto and Antonio Rago},
journal= {arXiv preprint arXiv:hep-lat/0106013},
year = {2009}
}
Comments
13 LaTeX2e pages, 2 ps figures included