$\sigma$ Exchange in the NN Interaction within the Chiral Unitary Approach
Nuclear Theory
2009-11-06 v1
Abstract
We study the nucleon-nucleon interaction in the isoscalar-scalar channel using t he chiral unitary approach. The -matrix of the pion-pion scattering in this c hannel is summed up to all orders using the B-S equation. We find that the calcu lated results at long distances are close to those of the -exchange inte raction. In addition, there appears a shorter range repulsion in this channel.
Keywords
Cite
@article{arxiv.nucl-th/0011008,
title = {$\sigma$ Exchange in the NN Interaction within the Chiral Unitary Approach},
author = {E. Oset and H. Toki and M. Mizobe and T. T. Takahashi},
journal= {arXiv preprint arXiv:nucl-th/0011008},
year = {2009}
}
Comments
LaTeX, 22pages 10figures