Photoproduction of meson and baryon resonances in a chiral unitary approach

Details Photoproduction of meson and baryon resonances in a chiral unitary approach Photoproduction of meson and baryon resonances in a chiral unitary approach

1999-11-12

arxiv.org/abs/nucl-th/9911040v1

Prog.Part.Nucl.Phys.44:213-222,2000

Physics

Nuclear Physics

Nuclear Theory

Contribution to the Erice Summer School of Nuclear Physics, 21th course: Electromagnetic Probes and the Structure of Hadrons a

Scientific paper

10.1016/S0146-6410(00)00073-9

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. 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.

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