Publication: Dispersive chiral approach to meson-meson dynamics: Spectroscopy results for light scalars and precision studies
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2007
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Amer Inst Physics
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Abstract
Dispersive approaches provide model independent description of meson-meson scattering. We first review here the use of dispersion relations to obtain a model independent unitarization of Chiral Perturbation Theory amplitudes, that establish the existence of light scalar mesons and whose leading 1/N_c behavior suggest they ahve a non q q̅ dominant component. We also review the forward dispersion relation checks on conflicting experimental data and the resulting very precise pi pi scattering scattering amplitudes.
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ISSN: 0094-243X
©2007 Amer Inst Physics.
Conference on Quark Confinement and the Hadron Spectrum (7. 2006. Ponta Delgada, Portugal).
I thank the organization staff, and particularly E. Ribeiro, for creating such a nice working environment and offering me the chance to participate in this wonderful Conference.
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