Multipion Photoproduction at Energies up to 6 BeV

The photoproduction of multipion ({≥} 3) final states has been studied in a hydrogen bubble chamber exposed to a 4.8-6.0-BeV bremsstrahlung photon beam. We find, in most channels, that the reactions are dominated by the production of resonances. In particular, in the three-prong events we discuss the photo-production of η⁰ mesons and associated production of N*++(1238) and ρ^-. In the five- and six-body final states we see the production of N*++(1238) and ω⁰ mesons. We also discuss a slight enhancement of the pπ⁺π⁺ and nπ^-π^- system observed at about 1560 MeV.