Study of the reaction. pi. /sup -/p. -->. n. lambda lambda. -bar at 6. 0 and 7. 0 GeV/c
1981
The ..lambda lambda..-bar system produced in the reaction ..pi../sup -/p..-->..n..lambda..Lambda-bar at 6.0 and 7.0 GeV/c has been studied utilizing the ANL1.5-m streamer-chamber facility. A 400 000-photograph exposure yielded 284 unweighted n..lambda..Lambda-bar events. The cross section for the reaction is 0.51 +- 0.22 ..mu..b at 6.0 GeV/c and 1.21 +- 0.23 ..mu..b at 7.0 GeV/c. No significant indications of baryonium states decaying into ..lambda..Lambda-bar are found.
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