Flatté-like distributions and the a0(980)/f0(980) mesons

被引：0
|
作者：
V. Baru
J. Haidenbauer
C. Hanhart
A. Kudryavtsev
Ulf-G. Meißner
机构：
[1] Institute of Theoretical and Experimental Physics,Institut für Kernphysik (Theorie)
[2] Forschungszentrum Jülich,Helmholtz
[3] Universität Bonn,Institut für Strahlen
来源：
The European Physical Journal A - Hadrons and Nuclei | 2005年 / 23卷
关键词：
13.60.Le Meson production; 13.75.-n Hadron-induced low- and intermediate-energy reactions and scattering (energy ⩽ 10 GeV); 14.40.Cs Other mesons with ; = ; = 0, mass < 2.5 GeV;
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摘要：
We explore the features of Flatté-like parametrizations. In particular, we demonstrate that the large variation in the absolute values of the coupling constants to the πη (or ππ) and K¯ channels for the a0(980) and f0(980) mesons that one can find in the literature can be explained by a specific scaling behaviour of the Flatté amplitude for energies near the K¯ 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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页码：523 / 533
页数：10
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