1999/12/14 by Eef van Beveren, George Rupp
Physics and Astronomy · #hep-ph
published as AIP Conf. Proc. 508 (1999) 310-317, Hadron Physics, Sept. 1999, Coimbra, Portugal · 8 pages, plain LaTeX (aipproc style)
arxiv created 1999/12/14 · arxiv updated 2009/11/30
The Nijmegen Unitarized Meson Model and its application to scalar mesons is briefly revisited. It is shown that all scalar states up to 1.5 GeV can be described as triplet-P-zero quark+antiquark states coupled to the OZI-allowed open and closed two-meson channels consisting of pseudoscalar and vector mesons. Crucial are the manifestation of a resonance-doubling phenomenon, typical for strong S-wave decay, and the employment of truly flavor-symmetric coupling constants. Also S-wave meson-meson scattering is thus reasonably well described, without any parameter fit.