A02 production by charge exchange in π+n interactions at 4 GeV/c

Abstract A partial wave analysis of the reaction π + n → π + π − π 0 p yields an A 0 2 production cross section of 225 ± 30μb for momentum transfer squared c ) 2 ; the differential cross-section and density matrix are presented and compared with ω 0 production in the light of theoretical models.