Charge symmetry breaking in pion-nucleon coupling constant : QCD sum rule approach
High Energy Physics - Phenomenology
2011-08-23 v1
Abstract
Using the vacuum-to-pion matrix element of the correlation function of the interpolating fields of the two nucleons, the isospin splitting in the diagonal pion-nucleon coupling constant has been studied in the framework of the conventional QCD sum rule. Some of the implications of this splitting has also been discussed.
Cite
@article{arxiv.hep-ph/0406187,
title = {Charge symmetry breaking in pion-nucleon coupling constant : QCD sum rule approach},
author = {J. P. Singh and Alka Upadhyay},
journal= {arXiv preprint arXiv:hep-ph/0406187},
year = {2011}
}
Comments
13 pages, 4 Figures and 1 Table