Production of φ and ω mesons in near-threshold pp reactions

DISTO Collaboration

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

The ratio of the exclusive production cross sections for φ and ω mesons has been measured in ppreactions at Tbeam = 2.85 GeV. The observed φ/ω ratio is (3.7 ±0.7+1.2−0.9) × 10−3. After phase space corrections, this ratio is about a factor of 10 enhanced relative to naive predictions based upon the Okubo-Zweig-Iizuka rule, in comparison to an enhancement by a factor of ∼3 previously observed at higher energies. The modest increase of this enhancement near the production threshold is compared to the much larger increase of the φ/ω ratio observed in specific channels of p®p annihilation experiments.

Lingua originaleInglese
pagine (da-a)4572-4575
Numero di pagine4
RivistaPhysical Review Letters
Volume81
Numero di pubblicazione21
DOI
Stato di pubblicazionePubblicato - 1998
Pubblicato esternamente

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