Corthals, T., Van Cauteren, T., Vancraeyveld, P., Ryckebusch, J. and Ireland, D.G. (2007) Electroproduction of kaons from the proton in a Regge-plus-resonance approach. Physics Letters B, 656(4-5), pp. 186-192. (doi: 10.1016/j.physletb.2007.09.036)
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Abstract
We present a Regge-plus-resonance (RPR) description of thep(e,e′K+)Yprocesses (Y=Λ,Σ0) in the resonance region. The backgroundcontributions to the RPR amplitude are constrained by the high-energyp(γ, K+)Ydata. As a result, the number of free model parametersin the resonance region is considerably reduced compared to typical effective-Lagrangian approaches. We compare a selection of RPR modelvariants, originally constructed to describeKYphotoproduction, with the world electroproduction database. The electromagnetic form factorsof the intermediateN∗sandΔ∗s are computed in the Bonn constituent-quark model. With this input, we find a reasonable description of thep(e,e′K+)Ydata without adding or readjusting any parameters. It is demonstrated that the electroproduction response functions are extremelyuseful for fine-tuning both the background and resonant contributions to the reaction dynamics.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Ireland, Professor David |
| Authors: | Corthals, T., Van Cauteren, T., Vancraeyveld, P., Ryckebusch, J., and Ireland, D.G. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physics Letters B |
| Publisher: | Elsevier |
| ISSN: | 0370-2693 |
| ISSN (Online): | 1873-2445 |
| Published Online: | 29 September 2007 |
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