PHENOMENOLOGICAL PP-]D-PI(-RIGHT-ARROW, PI(+)) B REACTIONS() MODEL OFA((P)OVER)

A phenomenological pp --> d pi(+) model of A(($) over right arrow p,pi (+))B reactions is developed that incorporates the Full spin dependenc e of the former reaction. The model makes predictions of analyzing pow ers and differential cross sections and is applied to an investigation of the (($) over right arrow p,pi(+)) reaction on H-2, He-3, He-4, an d C-12. The general trends of the predicted observables agree reasonab ly well with experiment for the helium isotopes. Much greater sensitiv ity due to effects of absorption and interference between different am plitudes is observed for carbon. Nevertheless, characteristic features of the analyzing powers and differential cross sections for single-pa rticle and two-particle-one-hole states are clearly discerned. Consist ent cross section normalization factors between the model and experime nt, of the order of unity, are found in nearly all cases over the whol e range of nuclei and energies investigated.