Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8198647 | Physics Letters B | 2006 | 5 Pages |
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.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Véronique Bernard, Ulf-G. MeiÃner,