Flatte-like distributions and the a_0(980)/f_0(980) mesons

Details Flatte-like distributions and the a_0(980)/f_0(980) mesons Flatte-like distributions and the a_0(980)/f_0(980) mesons

2004-10-25

arxiv.org/abs/nucl-th/0410099v1

Eur.Phys.J.A23:523-533,2005

Physics

Nuclear Physics

Nuclear Theory

12 pages, 12 figures

Scientific paper

10.1140/epja/i2004-10105-x

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.

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