Resonances, chiral symmetry, coupled channel unitarity and effective Lagrangians



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Peláez Sagredo, José Ramón and Oller, J. A. and Oset,, E. (2000) Resonances, chiral symmetry, coupled channel unitarity and effective Lagrangians. Nuclear physics A, 6675 (1-feb). 92C-95C. ISSN 0375-9474

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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 (p²) and O (p⁴) Chiral Lagrangian. We report on an update of these results examining their possible relevance for meson spectroscopy

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©Elsevier Science Bv.
International Conference on Hadron Spectroscopy (hadron '99) (8. 1999. Beijing, República Popular China)

Uncontrolled Keywords:Perturbation-theory; One-loop; Meson interactions; Form-factors; Scattering; Unitarization; Amplitudes
Subjects:Sciences > Physics > Physics-Mathematical models
Sciences > Physics > Mathematical physics
ID Code:35629
Deposited On:12 Feb 2016 18:30
Last Modified:10 Dec 2018 15:10

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