Resonances, Chiral Symmetry, Coupled Channel Unitarity and Effective Lagrangians

Details Resonances, Chiral Symmetry, Coupled Channel Unitarity and Effective Lagrangians Resonances, Chiral Symmetry, Coupled Channel Unitarity and Effective Lagrangians

1999-09-29

arxiv.org/abs/hep-ph/9909556v1

Nucl.Phys. A675 (2000) 92c-95c

Physics

High Energy Physics

High Energy Physics - Phenomenology

To appear in the proceedings of the 8th International Conference on Hadron Spectroscopy, HADROn 99, August 24-28, 1999, Beijin

Scientific paper

10.1016/S0375-9474(00)00224-4

By means of a coupled channel non-perturbative unitary approach, it is possible to extend the strong constrains of Chiral Perturbation Theory to higher energies. In particular, it is possible to reproduce the lowest lying resonances in meson-meson scattering up to 1.2 GeV using the parameters of the O(p^2) and O(p^4) Chiral Lagrangian. We report on an update of these results examining their possible relevance for meson spectroscopy.

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