2004/10/25 by V. Baru, J. Haidenbauer, C. Hanhart +4 · 94 citations
Mathematics · Physics and Astronomy · #Amplitude #Computer science #Constant (computer programming) #Coupling (piping) #Coupling constant #Geometry #High-Energy Particle Collisions Research #Materials science #Mathematics #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scaling #hep-ph #nucl-th
paper · pdf · doi:10.1140/epja/i2004-10105-x
published in The European Physical Journal A 23(3), 523-533 (Springer Science+Business Media) · 12 pages, 12 figures
arxiv created 2004/10/25 · openalex publication_date 2004/12/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 a0(980) and f0(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.