AMPLITUDE ANALYSIS OF THE (N)OVER-BARN-]PI(-)PI(+) REACTION

A simple partial wave amplitude analysis of (p) over bar p-->pi(-)pi() has been performed for data in the range p(lab)=360-1000 MeV/c, wher e remarkably few partial waves are required to fit the data. Furthermo re, the number of required J values does not change in this energy ran ge. However, the resulting set of partial wave amplitudes is not uniqu e. We discuss possible measurements with polarized beam and target whi ch will severely restrict and help resolve the present analysis ambigu ities. New data from the reaction (p) over bar p-->pi(0) pi(0) alone a re insufficient for that purpose.