Photoproduction of mesons is an excellent tool for the study of nucleon resonances.
Complementary to pion induced reactions, photoproduction on the free proton contributes to …

The classification of resonant particles and some currently popular symmetries for
describing their decays are reviewed. Experimental developments are brought up to date …

We have measured precise total and differential cross sections for the reaction γ p→ p η
from threshold to 790 MeV at the MAMI accelerator in Mainz with the neutral meson …

Starting from a unitary effective Lagrangian model for the meson-nucleon scattering
developed in T. Feuster and U. Mosel, Phys. Rev. 58, 457 (1998), we come to a unified …

Eta photo-and electroproduction off the nucleon is investigated in an effective lagrangian
approach that contains Born terms and both vector meson and nucleon resonance …

We investigate η photoproduction in the N*(1535) resonance region within the effective
Lagrangian approach (ELA), wherein leading contributions to the amplitude at the tree level …

Differential cross sections for γ p→ η p have been measured with tagged real photons for
incident photon energies from 0.75 to 1.95 GeV. Mesons were identified by missing mass …

We present new Σ beam asymmetry data for η meson photoproduction on the proton, using
a novel tagged, laser backscattered, linearly polarized photon beam up to 1.1 GeV. The data …

Low-energy eta photoproduction on the nucleon is studied in an effective lagrangian
approach that contains Born terms, vector-meson and nucleon resonance contributions. The …

Recently proposed partial conservation of the U (1) current (PCU1C) is applied to estimate
the decay rates of various OZI forbidden processes. The results obtained are in good …