Spin correlation coefficients in p-vectorp-vector -> pn#pi#~+ from 325 to 400 MeV

摘要

The spin correlation coefficient combinations S ident to A_(xx) + A_(yy), D ident to A_(xx) - A_(yy) and the analyzing powers A_y(#theta#) were measured for p-vectorp-vector -> pn#pi#~+ at beam energies of 325, 350, 375 and 400 MeV. A polarized internal atomic hydrogen target and a stored, polarized proton beam were used. These polarization observables are sensitive to contributions of higher partial waves. A comparison with recent theoretical calculations is provided.