Meson resonances from unitarized meson scattering at one loop in Chiral Perturbation Theory

Details Meson resonances from unitarized meson scattering at one loop in Chiral Perturbation Theory Meson resonances from unitarized meson scattering at one loop in Chiral Perturbation Theory

2002-12-03

arxiv.org/abs/hep-ph/0212042v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

To appear in the proceedings of the 5th International Conference on ``Quark confinement and the hadron spectrum'', held in Gar

Scientific paper

We show the results for the scattering poles associated to the rho, f0, a0, K*, sigma and kappa resonances in meson-meson scattering. Our amplitudes are obtained from the complete one-loop meson-meson scattering amplitudes from Chiral Perturbation Theory. Once unitarized with the Inverse Amplitude Method, they describe remarkably well the data simultaneously in the low energy and resonance regions up to 1.2 GeV, using low energy parameters compatible with present determinations.

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