Photoproduction of meson and baryon resonances in a chiral unitary approach



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Oset, E. and Marco, E. and Nacher, J. C. and Oller, J. A. and Peláez Sagredo, José Ramón and Ramos, A. and Toki, H. (2000) Photoproduction of meson and baryon resonances in a chiral unitary approach. Progress in particle and nuclear physics, 44 . pp. 213-222. ISSN 0146-6410

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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 mesonmeson scattering up to 1.2 GeV using the parameters of the O(p²) and O ( p^ 4 ) Chiral Lagrangian. The meson baryon sector can also be tackled along similar lines. We report on an update of these results showing some examples of photon induced reactions where the techniques have been recently applied.

Item Type:Article
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©Elsevier Science BV.
Erice School on Electromagnetic Probes and the Structure of Hadrons and Nuclei (1999. Erice, Italia).
This work is partly supported by DGICYT, contract number PB 96-0753

Uncontrolled Keywords:Perturbation-theory; One-loop; Scalar mesons; Form-factors; Scattering; Unitarization; Lagrangians; Amplitudes; Channels; Symmetry
Subjects:Sciences > Physics > Physics-Mathematical models
Sciences > Physics > Mathematical physics
ID Code:35654
Deposited On:12 Feb 2016 17:23
Last Modified:10 Dec 2018 15:10

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