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Study of. omega. omega. systems produced in 38 GeV/ c. pi. sup minus p collisions

Journal Article · · Soviet Journal of Nuclear Physics (English Translation); (USA)
OSTI ID:5507469
The {pi}{sup {minus}}{ital p}{r arrow}{omega}{omega}{ital n} reaction has been studied for the first time at the 70 GeV IHEP accelerator. The six photons from the decay of the two {omega} mesons were detected in GAMS-2000, a hodoscope multi-photon spectrometer. Two resonances decaying into {omega}{omega},{ital X}(1640) and {ital X}(1960), have been observed. Their quantum numbers are {ital J}{sup {ital PC}}=2{sup ++}, {ital I}{sup {ital G}}=0{sup +}. The reaction is dominated by the one-pion exchange mechanism. The production cross sections {sigma}{center dot}BR ({ital X}{r arrow}{omega}{omega}) are 0.65{plus minus}0.15 {mu}b and 1.0{plus minus}0.2 {mu}b, respectively.
OSTI ID:
5507469
Journal Information:
Soviet Journal of Nuclear Physics (English Translation); (USA), Journal Name: Soviet Journal of Nuclear Physics (English Translation); (USA) Vol. 49:4; ISSN 0038-5506; ISSN SJNCA
Country of Publication:
United States
Language:
English