Two-Pion Exchange Nucleon-Nucleon Potential: Model Independent Features
Nuclear Theory
2009-10-30 v1 High Energy Physics - Phenomenology
Abstract
A chiral pion-nucleon amplitude supplemented by the HJS subthreshold coefficients is used to calculate the the long range part of the two-pion exchange nucleon-nucleon potential. In our expressions the HJS coefficients factor out, allowing a clear identification of the origin of the various contributions. A discussion of the configuration space behaviour of the loop integrals that determine the potential is presented, with emphasis on cancellations associated with chiral symmetry. The profile function for the scalar-isoscalar component of the potential is produced and shown to disagree with those of several semi-phenomenological potentials.
Cite
@article{arxiv.nucl-th/9611056,
title = {Two-Pion Exchange Nucleon-Nucleon Potential: Model Independent Features},
author = {Manoel R. Robilotta and Carlos A. da Rocha},
journal= {arXiv preprint arXiv:nucl-th/9611056},
year = {2009}
}
Comments
16 pages, 9 embedded figures, Latex 2.09, Revtex.sty, epsf.sty