16O(p-arrow-right,π+)O17* at incident proton energies of 250, 354, and 489 MeV

Differential cross sections and analyzing powers are presented for the 16O(p-arrow-right,π+)17O* reaction at T/sub p/ = 250, 354, and 489 MeV and compared with preliminary 200 MeV data as well as previously published data taken at other energies above and below the Δ/sub 1232/ resonance region. The differential cross sections for each final state exhibit an energy dependence similar to that of the pp→dπ+ reaction at equivalent center of mass energy and four-momentum transfer, as has been seen previously for (p,π+) reactions with other target nuclei. The shape of the analyzing power angular distributions varies with the /sup 17/O/sup */ nuclear final state. Some states exhibit broad similarities with that of the p-arrow-rightp→dπ+ reaction, while others are markedly different