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Scalar mesons as "Simple" Q Q-bar states
Authors: E. van Beveren and G. Rupp
Ref.: prepared for HADRON PHYSICS: Effective Theories of Low Energy QCD, Coimbra (Portugal), 10-15 Sep 1999, published in AIP Conf. Proc. 508, 310-317 (2000)
Abstract: 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.
URL: link.aip.org
