Amplitudes for NN→dπ up to 800 MeV

Amplitudes are presented which fit extensive spin-dependent data from 450 to 800 MeV. The energy dependence of 3 P 2 , 1 D 2 and 3 F 3 amplitudes agrees in both magnitude and phase with pi d to Delta N, with the nucleon playing the role of a spectator; the phases are close to delta NN + delta pi d , the sum of elastic phase-shifts for NN and pi d scattering. The 3 P 1 amplitude is the sum of a repulsive threshold contribution and an attractive contribution due to the formation of an intermediate Delta . Data from 578 to 800 MeV give reliable determinations of the 1 S 0 amplitude and a rough determination of the 3 F 2 amplitude.