Flatté-like distributions and the a0(980)/f0(980) mesons
نویسنده
چکیده
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 KK̄ 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 KK̄ threshold. We argue that the ratio of the coupling constants can be much better determined from a fit to experimental data. PACS. 13.60.Le – 13.75.-n – 14.40.Cs
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تاریخ انتشار 2004