The Linear Meson Model and Chiral Perturbation Theory
High Energy Physics - Phenomenology
2011-09-13 v1 Nuclear Theory
Abstract
We compare the linear meson model and chiral perturbation theory in next to leading order in the quark mass expansion. In particular, we compute the couplings L_4--L_8 of chiral perturbation theory as functions of the parameters of the linear model. They are induced by the exchange of 0^{++} scalar mesons. We use a phenomenological analysis of the effective vertices of the linear model in terms of pseudoscalar meson masses and decay constants. Our results for the L_i agree with previous phenomenological estimates.
Cite
@article{arxiv.hep-ph/9704345,
title = {The Linear Meson Model and Chiral Perturbation Theory},
author = {Dirk-U. Jungnickel and C. Wetterich},
journal= {arXiv preprint arXiv:hep-ph/9704345},
year = {2011}
}
Comments
21 pages, LaTeX