The reactions γp → ωπ+π-p and γp → etaπ+π-p at photon energies of 25-70 GeV

Measurements of ω and eta production in the reaction γp → π+π-π+π-π0p are presented, showing that the ωπ+π- channel is made up of an enhancement at approx. 1.7 GeV of width approx. 0.5 GeV, which is consistent with being a 1- state, together with a distribution at higher masses containing higher angular momentum terms. The etaπ+π- final state is produced with a similar cross section and also shows a low-mass enhancement. (orig.)