{phi}-meson production in pN collisions close to threshold
- Institut fuer Kernphysik, Universitaet zu Koeln (Germany)
- Institut fuer Kernphysik, Forschungszentrum Juelich (Germany)
- High Energy Physics Department, Petersburg Nuclear Physics Institute (Russian Federation)
At the ANKE facility of COSY Juelich, the reactions pp{yields}pp{phi} and pn{yields}d{phi} have been investigated. Data for the total cross section in pp entrance channel have been obtained at excess energies of 19 MeV, 35 MeV and 76 MeV. In case of the pn entrance channel the energy dependence of the cross section up to 80 MeV has been extracted by exploiting the intrinsic momentum of the target neutron using a deuterium target. The new {phi} data combined with the existing data on {omega}-meson production provides the {phi}/{omega} production ratio in both, the pp- and pn-channels. The preliminary ratios of both channels are found to be similar and about seven times larger than the ratio based on Okubo-Zweig-Iizuka (OZI) rule.
- OSTI ID:
- 20873361
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 842; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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