RESONANCE STRUCTURES IN THE PS172 RESULTS ON (P)OVER-BAR-P-]-PI-PI

The first amplitude analysis of data on ppBAR --> pi-pi+ from the CERN PS172 experiment is performed to find the resonant content of the NNB AR --> pipi channel in the range 0.36 less-than-or-equal-to P(lab) les s-than-or-equal-to 1.55 GeV/c. Using the Barrelet method, only two sol utions having acceptable threshold behavior and continuity in energy, which also describe the experimental results on ppBAR --> pi0pi0, are found. Both solutions exhibit a rich spectrum Of resonances with spins from 0 to 4, including states with couplings to NNBAR much larger tha n would be expected for simple qqBAR compositions.