Photon- and meson-induced reactions on the nucleon

الأصل · EN

In an unitary effective Lagrangian model we develop a unified description of both meson scattering and photon-induced reactions on the nucleon. Adding the photon to an already existing model for meson-nucleon scattering yields both Compton and meson photoproduction amplitudes. In a simultaneous fit to all available data involving the final states γN, πN, ππN, ηN and K Λ the parameters of the nucleon resonances are extracted.