Cross-section measurement for nonstrange final states and single-pion production in. pi. /sup +/p interactions at 3. 6 GeV/c

Cross sections are presented for all final states without strange-particle production. Contributions to single-pion production are found from (i) ..delta.. (1238) ..pi.., (ii) rho/sup +/p, (iii) nucleon diffractive dissociation into N..pi.., (iv) N* (1688) ..pi../sup +/, and (v) ''phase space.'' Processes (i), (ii), and (iii) are studied in some detail taking into account overlaps between the various subchannels.