Abstract
The production of ..pi../sup +/..pi../sup -/..pi../sup 0/ events allows the study of pure I=1 exchange without the complicating presence of the ..delta.. (1236) which appears with proton targets. A total of 4218 events, corresponding to 8.5 events/..mu..b, were analyzed from an exposure of the SLAC 82-inch deuterium bubble chamber. The low-mass resonances (eta, ..omega.., A/sub 2/, and ..omega.. (1675)) are clearly observed. In addition, enhancements due to possible higher-mass resonances are observed by using the technique of p/sub perpendicular/ cuts.
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