학술논문
Study of ω-meson production in pp collisions at ANKE.
Document Type
Article
Author
Source
Subject
*PROTON-proton interactions
*MESONS
*HADRON interactions
*NUCLEAR reactions
*SCATTERING (Physics)
*NUCLEON-nucleon interactions
*HEAVY particles (Nuclear physics)
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Language
ISSN
1434-6001
Abstract
The production of ω-mesons in the pp → ppω reaction has been investigated with the COSY-ANKE spectrometer for excess energies of 60 and 92MeV by detecting the two final protons and reconstructing their missing mass. The large physical background was subtracted using an event-by-event transformation of the proton momenta between the two energies. Differential distributions and total cross-sections were obtained after careful studies of possible systematic uncertainties in the overall ANKE acceptance. The results are compared with the predictions of theoretical models. Combined with data on the φ-meson, a more refined estimate is made of the Okubo-Zweig-Iizuka rule violation in the φ/ω production ratio. [ABSTRACT FROM AUTHOR]