Flatte-like distributions and the a_0(980)/f_0(980) mesons
Nuclear Theory
2008-11-26 v1 High Energy Physics - Phenomenology
Abstract
We explore the features of Flatte-like parametrizations. In particular, we demonstrate that the large variation in the absolute values of the coupling constants to the pi-eta (or pi-pi) and KKbar channels for the a_0(980) and f_0(980) mesons that one can find in the literature can be explained by a specific scaling behaviour of the Flatte amplitude for energies near the KKbar threshold. We argue that the ratio of the coupling constants can be much better determined from a fit to experimental data.
Cite
@article{arxiv.nucl-th/0410099,
title = {Flatte-like distributions and the a_0(980)/f_0(980) mesons},
author = {V. Baru and J. Haidenbauer and C. Hanhart and A. Kudryavtsev and Ulf-G. Meissner},
journal= {arXiv preprint arXiv:nucl-th/0410099},
year = {2008}
}
Comments
12 pages, 12 figures