Photoproduction of η-mesons off protons and deuterons

الأصل · EN

An effective field theory with hadrons and photons is constructed, where the hadronic parameters are determined by fitting elastic πN scattering data. The predicted pion-induced η-production on the nucleon agrees well with the data. The hadronic model is then used to describe the final-state interaction in photoinduced processes. We present a consistent description of pion photoproduction in the E₀+-channel and of the total cross sections for photoinduced η-production on the proton as well as on the deuteron.