The nucleon axial-vector coupling beyond one loop
High Energy Physics - Lattice
2011-07-19 v1 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We analyze the nucleon axial-vector coupling to two loops in chiral perturbation theory. We show that chiral extrapolations based on this representation require lattice data with pion masses below 300 MeV.
Keywords
Cite
@article{arxiv.hep-lat/0605010,
title = {The nucleon axial-vector coupling beyond one loop},
author = {Véronique Bernard and Ulf-G. Meißner},
journal= {arXiv preprint arXiv:hep-lat/0605010},
year = {2011}
}
Comments
9 pp, 2 figs