Microscopic derivation of pion-nucleon and pion-Delta scattering lengths
Nuclear Theory
2009-11-07 v3
Abstract
A general expression for the and scattering lengths is derived in the framework of a microscopic calculation. Annihilation, negative energy wave-functions and spontaneous chiral symmetry are included consistently. The point-like limit is used to calculate the scattering lengths.
Cite
@article{arxiv.nucl-th/0106071,
title = {Microscopic derivation of pion-nucleon and pion-Delta scattering lengths},
author = {Pedro Bicudo and Manuel Faria and Gonçalo Marques and J. Emilio Ribeiro},
journal= {arXiv preprint arXiv:nucl-th/0106071},
year = {2009}
}
Comments
Clarified version of the preprint. 1 elsart manuscript, 2 eps figures