Pion production from thepd→dπ+nreaction at 585 MeV

Pion production from the reaction ${}_{}{}^2{}_{}{}^{}\mathrm{H}(p,d{\pi }^{+})n$ was measured in a kinematically complete experiment at an incident proton energy of 585 MeV. The deuteron was detected with a magnetic spectrometer fixed at 35°. The pion was detected at seven angles from 30° to 90° lab angle. The data exhibit a broad peak in the deuteron momentum spectrum that decreases in magnitude and shifts to greater momentum with increasing pion angle.