Flavour-symmetry correction to the ``naive'' Zweig rule for the scalar-meson flavour-singlet

Abstract

We present flavour-symmetric couplings for the OZI-allowed three-meson vertices of effective meson theories, which for the case of the two-meson channels to which the flavour-singlet scalar meson couples, are endowed with a correction factor with respect to the standard formula.

11 pages, plain LaTeX, minor changes, more references

References in corpus (6)

• A low-lying scalar meson nonet in a unitarized meson model
• Multi-Instanton Calculus and the AdS/CFT Correspondence in N=4 Superconformal Field Theory
• Evidence for a scalar kappa(900) resonance in pi-K scattering
• Recoupling matrix elements and decay
• An Improved Test of the Flavor Independence of Strong Interactions
• Flavour symmetry of mesonic decay couplings

Cited by in corpus (4)

• Classification of the scalar mesons: a strange pole expedition into charm and beauty territory
• S-wave and P-wave pion-pion and kaon-pion contributions to three-body decay processes in the Resonance-Spectrum Expansion
• Chiral Shielding
• Unitary model analysis of $f_0(500)$ pole positions by continuously varying $m_{\pi }$: comparison with discrete lattice predictions