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Phys. Rev. D 57, 5370–5381 (1998)

Study of the reaction p̅ pφφ from 1.1 to 2.0GeV/c

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C. Evangelista et al.
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Received 13 January 1998; published in the issue dated 1 May 1998

A study has been performed of the reaction p̅ p⃗4K± using in-flight antiprotons from 1.1 to 2.0 GeV/c incident momentum interacting with a hydrogen jet target. The reaction is dominated by the production of a pair of φ mesons. The p̅ pφφ cross section rises sharply above threshold and then falls continuously as a function of increasing antiproton momentum. The overall magnitude of the cross section exceeds expectations from a simple application of the Okubo-Zweig-Iizuka rule by two orders of magnitude. In a fine scan around the ξ/fJ(2230) resonance, no structure is observed. A limit is set for the double branching ratio B(ξp̅ p)×B(ξφφ)<6×10-5 for a spin 2 resonance of M=2.235 GeV and Γ=15MeV.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.57.5370
DOI:
10.1103/PhysRevD.57.5370
PACS:
14.40.-n, 13.75.-n, 25.43.+t