Electroproduction of kaons from the proton in a Regge-plus-resonance approach

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dc.creatorCorthals, T.
dc.creatorVan Cauteren, T.
dc.creatorVan Craeyveld, P.
dc.creatorRyckebusch, J.
dc.creatorIreland, D. G.
dc.date2007-04-27
dc.date2007-09-25
dc.date.accessioned2026-07-07T10:59:48Z
dc.date.available2026-07-07T10:59:48Z
dc.descriptionWe present a Regge-plus-resonance (RPR) description of the p(e,e'K^+)Y processes (Y=Λ,Σ^0) in the resonance region. The background contributions to the RPR amplitude are constrained by the high-energy p(γ, K^+)Y data. As a result, the number of free model parameters in the resonance region is considerably reduced compared to typical effective-Lagrangian approaches. We compare a selection of RPR model variants, originally constructed to describe $KY$ photoproduction, with the world electroproduction database. The electromagnetic form factors of the intermediate N^*s and $Δ^*s are computed in the Bonn constituent-quark model. With this input, we find a reasonable description of the p(e,e'K^+)Y data without adding or readjusting any parameters. It is demonstrated that the electroproduction response functions are extremely useful for fine-tuning both the background and resonant contributions to the reaction dynamics.
dc.description14 pages, 7 figures; added discussion on double counting in the RPR model; accepted for publication in Phys. Lett. B
dc.identifierhttps://arxiv.org/abs/0704.3691
dc.identifierhttp://arxiv.org/abs/0704.3691
dc.identifierPhys.Lett.B656:186-192,2007
dc.identifierdoi:10.1016/j.physletb.2007.09.036
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/187529
dc.subjectNuclear Theory
dc.titleElectroproduction of kaons from the proton in a Regge-plus-resonance approach
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