QCD Sum Rules: Isospin Symmetry Breakings in Pion-Nucleon Couplings
Nuclear Theory
2009-09-25 v1
Abstract
We use the method of QCD sum rules in the presence of an external pion field to investigate isospin symmetry breakings in pion-nucleon couplings. Possible manifestations of such isospin symmetry breaking are examined in the context of low-energy nucleon-nucleon () scattering. We discuss numerical results in relation to both the existing data and other theoretical predictions.
Keywords
Cite
@article{arxiv.nucl-th/9610025,
title = {QCD Sum Rules: Isospin Symmetry Breakings in Pion-Nucleon Couplings},
author = {W-Y. P. Hwang and Ze-sen Yang and Y. S. Zhong and Z. N. Zhou and Shi-lin Zhu},
journal= {arXiv preprint arXiv:nucl-th/9610025},
year = {2009}
}
Comments
14 pages, 4 figures (upon request), LateX