A study of n̅ρ annihilations between 0.5 and 0.8 GeV/c

A study of n̅p annihilations with n̅ momentum between 0.5 and 0.8 GeV/c is presented. The search for s-channel resonances in n̅p annihilations reveal possibly two narrow structures in the odd pions final state. Inclusive ρ0 and ƒ0 cross sections in n̅p annihilations have been estimated to be 9.0±0.6 mb and 3.4±0.6 mb respectively. Longitudinal and transverse momentum distributions for inclusive ρ0 production have been presented. A study of resonance production in exclusive final state reveals ρ0 production to be dominant in the odd pion final states and ρ+, ω0 productions are most important for the even pion final states. The π+π– effective mass spectra in the backward and the forward directions in the n̅ρ c.m. system have been examined for a possible ρ-ω interference effect