ar X iv : h ep - p h / 03 10 23 7 v 1 2 0 O ct 2 00 3 Large N c behavior of light resonances in meson - meson scattering

Abstract

By scaling the parameters of meson-meson unitarized Chiral Perturbation Theory amplitudes according to the QCD large N c rules, one can study the spectroscopic nature of light meson resonances. The scalars σ , κ f 0 (980) and, possibly, the a 0 (980) do not seem to behave as ¯ qq states, in contrast to the vectors ρ(770) and K * (892). The behavior shown by… (More)

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Cite this paper

@inproceedings{Pelez2003arXI, title={ar X iv : h ep - p h / 03 10 23 7 v 1 2 0 O ct 2 00 3 Large N c behavior of light resonances in meson - meson scattering}, author={Jos{\'e} R. Pel{\'a}ez}, year={2003} }