Towards a model-independent partial wave analysis for pseudoscalar meson   photoproduction
  Amplitude and partial wave analyses for pion, eta or kaon photoproduction are discussed in the context of `complete experiments'. It is shown that the model-independent helicity amplitudes obtained from at least 8 polarization observables including beam, target and recoil polarization can not be used to determine underlying resonance parameters. However, a truncated partial wave analysis, which theoretically requires only 5 observables will be possible with minimal model input. 
Lothar Tiator (Institut fuer Kernphysik, Universitaet Mainz)
nucl-th hep-ex hep-ph