STUDY OF THE PP-]D-PI(+) REACTION CLOSE TO THE THRESHOLD

The pp --> d pi(+) reaction is studied at excess energies between 0.27 5 MeV and 3.86 MeV. Differential and total cross sections were measure d employing a magnetic spectrometer with an acceptance of close to 4 p i in the center of mass system. From the total cross sections the S an d P-wave contributions are deduced. The measured anisotropies between 0.008 and 0.29 suggest a non-negligible P-wave contribution even close to threshold. Compared to existing data the present results offer no evidence for charge-symmetry breaking or time reversal violation.