Antiproton-proton annihilation at rest into {omega}{eta}{pi}{sup 0}

Journal Article · Mon Jul 10 04:00:00 EDT 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.48518· OSTI ID:253236

Armstrong, D S ^[1]

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1. College of William and Mary, Williamsburg, Virginia 23185 (United States)

The Crystal Barrel detector at LEAR was used to study {ital p{bar p}} annihilation at rest into the final state {omega}{eta}{pi}{sup 0}, where the final-state mesons were observed in all-neutral decay modes. A sample of 10.9{times}10{sup 4} {omega}{eta}{pi}{sup 0} events was obtained from the analysis of 10{sup 6} annihilations into all-neutral final states. An amplitude analysis of the Dalitz plot shows that the final state is dominated by production of the {ital a}{sub 0}(980), along with contributions from the {ital a}{sub 2}(1320) and the {ital b}{sub 1}(1235). No additional contributions were required to fit the Dalitz plot, and upper limits for the production of vector and axial-vector particles decaying to {eta}{pi}{sup 0} were determined. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• Sponsoring Organization: USDOE
• OSTI ID: 253236
• Report Number(s): CONF-940514--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 338; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
A0-980 MESONS
A2-1320 MESONS
ANNIHILATION
BRANCHING RATIO
DALITZ PLOT
ETA MESONS
OMEGA-782 MESONS
PARTICLE PRODUCTION
PIONS NEUTRAL
PROTON-ANTIPROTON INTERACTIONS