Comparison of the extended linear sigma model and chiral perturbation theory
Nuclear Theory
2009-11-11 v2
Abstract
The pion-nucleon scattering amplitudes are calculated in tree approximation with the use of the extended linear sigma model (ELSM) as well as heavy baryon chiral perturbation theory (HBPT), and the non-relativistic forms of the ELSM results are compared with those of HBPT. We find that the amplitudes obtained in ELSM do not agree with those derived from the more fundamental effective approach, HBPT.
Keywords
Cite
@article{arxiv.nucl-th/0506038,
title = {Comparison of the extended linear sigma model and chiral perturbation theory},
author = {W. P. Alvarez and K. Kubodera and F. Myhrer},
journal= {arXiv preprint arXiv:nucl-th/0506038},
year = {2009}
}
Comments
7 pages