Production of $ω$-mesons in proton-proton collisions

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dc.creatorNakayama, K.
dc.creatorSzczurek, A.
dc.creatorHanhart, C.
dc.creatorHaidenbauer, J.
dc.creatorSpeth, J.
dc.date1998-02-04
dc.date.accessioned2026-07-07T11:11:33Z
dc.date.available2026-07-07T11:11:33Z
dc.descriptionThe production of $ω$-mesons in proton-proton collisions for proton incident energies up to 2.2 GeV is investigated within a meson-exchange model of hadronic interactions. We find a large cancellation between the dominant $πρω$ meson-exchange current and nucleonic current contributions. A comparison with preliminary data from SATURNE calls for the inclusion of off-shell form factors at the $NNω$ and $πρω$ production vertices. Due to the present lack of knowledge of these form factors, together with the destructive interference mentioned above, the relative magnitude of the nucleonic and meson-exchange current contributions cannot be determined from existing total cross section data. However, it is shown that the angular distribution of the produced $ω$-mesons provides an unique and clear signature of the magnitude of these currents, thus allowing one to disentangle these two basic reaction mechanisms.
dc.description17 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/nucl-th/9802013
dc.identifierhttp://arxiv.org/abs/nucl-th/9802013
dc.identifierPhys.Rev.C57:1580-1587,1998
dc.identifierdoi:10.1103/PhysRevC.57.1580
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191134
dc.subjectNuclear Theory
dc.titleProduction of $ω$-mesons in proton-proton collisions
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