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

Preprint

25 October 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-th/0410099

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.

Keywords

LIKE PARAMETRIZATIONS
LIKE DISTRIBUTIONS
COUPLING CONSTANTS
FLATTE LIKE
MESONS
KKBAR
F_0
A_0

All Related Versions

Version 1, 2004-10-25, ArXiv
Published version: The European Physical Journal A, 23 (3), 523.

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