Exclusive photo- and electroproduction of mesons in the GeV region

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dc.creatorFolberth, G.
dc.creatorRossmann, R.
dc.creatorSchweiger, W.
dc.date1997-02-13
dc.date.accessioned2026-07-07T04:01:17Z
dc.date.available2026-07-07T04:01:17Z
dc.descriptionWe consider the reactions gamma p --> M B, with M B being either K+ Lambda, K+ Sigma0, or Pi n, within a diquark model which is based on perturbative QCD. The model parameters and the quark-diquark distribution amplitudes of the baryons are taken from previous investigations of electromagnetic baryon form factors and Compton-scattering off protons. Reasonable agreement with the few existing photoproduction data at large momentum transfer is found for meson distribution amplitudes compatible with the asymptotic one (proportional to x (1-x)). We present also first results for hard electroproduction of the K+ Lambda final state. Our predictions exhibit some characteristic features which could easily be tested in forthcoming electroproduction experiments.
dc.description10 pages, LaTeX document, uses sprocl.sty style file, 5 embedded eps figures. Contribution presented by W. Schweiger at the DIQUARKS III Workshop, Turin, Italy, 28-30 Oct 1996
dc.identifierhttps://arxiv.org/abs/hep-ph/9702328
dc.identifierhttp://arxiv.org/abs/hep-ph/9702328
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/46841
dc.subjectHigh Energy Physics - Phenomenology
dc.titleExclusive photo- and electroproduction of mesons in the GeV region
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