Threshold enhancement in eta photoproduction from 2H and 4He

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dc.creatorHejny, V.
dc.creatorWeiss, J.
dc.creatorAchenbach, P.
dc.creatorAhrens, J.
dc.creatorAnnand, J. R. M.
dc.creatorBeck, R.
dc.creatorKotulla, M.
dc.creatorKrusche, B.
dc.creatorKuhr, V.
dc.creatorLeukel, R.
dc.creatorMacGregor, I. J. D.
dc.creatorMetag, V.
dc.creatorNovotny, R.
dc.creatorde Leon, V. Olmos
dc.creatorRambo, F.
dc.creatorSchmidt, A.
dc.creatorSchumacher, M.
dc.creatorSiodlaczek, U.
dc.creatorStroeher, H.
dc.creatorWissmann, F.
dc.creatorWolf, M.
dc.date2003-04-02
dc.date2003-04-03
dc.date.accessioned2026-07-07T11:32:29Z
dc.date.available2026-07-07T11:32:29Z
dc.descriptionThe photoproduction of eta-mesons from 2H and 4He has been studied for energies close to the production thresholds. The experiments were carried out with the tagged photon beam of the Mainz MAMI accelerator. The eta-mesons were detected via their two photon decays with the electromagnetic calorimeter TAPS. Total cross sections, angular and momentum distributions of the eta-mesons have been determined for both reactions. The total cross sections in the threshold region show a large enhancement over the predictions of a participant - spectator model, indicating significant final state interaction effects. The results are compared to recent model calculations taking into account nucleon-nucleon and nucleon-eta final state interaction effects on different levels of sophistication.
dc.description8 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/nucl-ex/0304005
dc.identifierhttp://arxiv.org/abs/nucl-ex/0304005
dc.identifierEur.Phys.J.A13:493-499,2002
dc.identifierdoi:10.1007/s10050-002-8779-0
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197614
dc.subjectNuclear Experiment
dc.titleThreshold enhancement in eta photoproduction from 2H and 4He
dc.typetext

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