PARTIAL-WAVE ANALYSIS OF NEUTRAL 3 PI SYSTEM PRODUCED IN REACTIO PI -P-]PI+PI-PI0)N AT 12 AND 15 GEV-C
Data on the charge-exchange reaction π-p → (π+π-π0)n have been taken at beam momenta of 12 and 15 GeV/c, using the CERN Omega Multiparticle Spectrometer. A partial-wave analysis has been made of the (3π)0 system. We observe both natural and unnatural spin-parity production. The natural parity states...
Huvudupphovsmän: | , , , , , , , , , , , , , , , , , , , , , , |
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Materialtyp: | Journal article |
Språk: | English |
Publicerad: |
1978
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Sammanfattning: | Data on the charge-exchange reaction π-p → (π+π-π0)n have been taken at beam momenta of 12 and 15 GeV/c, using the CERN Omega Multiparticle Spectrometer. A partial-wave analysis has been made of the (3π)0 system. We observe both natural and unnatural spin-parity production. The natural parity states can be identified with established resonances. In addition a natural spin-parity enhancement is observed at a mass of about 2 GeV/c2 with JP = 4+ preferred. We have called this effect the A2* (2030). The unnatural spin-parity production found is consistent with reggeized Deck model predictions. No unambiguous A1 or A3 production is observed. © 1978. |
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