Remark on the effective range approach to the f_0-a_0 mesons
High Energy Physics - Phenomenology
2009-11-10 v2
Abstract
Discussion of apparently simple issues related to the resonance close to threshold may lead to misleading results. We clarify some subtle points, in particular the relation between Breit-Wigner and effective range approaches to the f_0-a_0 mesons.
Cite
@article{arxiv.hep-ph/0402022,
title = {Remark on the effective range approach to the f_0-a_0 mesons},
author = {B. Kerbikov},
journal= {arXiv preprint arXiv:hep-ph/0402022},
year = {2009}
}
Comments
LaTeX, 8 pages, no figures, minor corrections, to appear in Phys.Lett.B