MEASUREMENTS OF ANGULAR-DISTRIBUTIONS OF ABSOLUTE CROSS-SECTIONS AND ANALYZING POWERS OF THE REACTION PP-]D-PI+ BETWEEN 1.3 AND 2.4 GEV

We have measured angular distributions of absolute cross sections, analyzing powers and the spin parameters K(nn) of the reaction p--> p--> d-pi+ at 6 incident proton energies between 1.3 and 2.4 GeV. In a first phase the data were analyzed to obtain angular distributions of absolute cross sections and analyzing powers A(yo). Distributions of A(yo) where the Mandelstam parameters t or u are equal to zero or the angle theta-pi (c.m.) equals 90-degrees as a function of square root s confirm the resonance like behaviour suggested by an earlier experiment. For the first time deviations from a smooth behaviour are also found in the square root s distribution (at t = 0) of the absolute cross section.