Energy dependence of the Lambda/Sigma0 production cross section ratio in p-p interactions

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dc.creatorKowina, P.
dc.creatorAdam, H. -H.
dc.creatorBudzanowski, A.
dc.creatorCzyzykiewicz, R.
dc.creatorGrzonka, D.
dc.creatorJanusz, M.
dc.creatorJarczyk, L.
dc.creatorKamys, B.
dc.creatorKhoukaz, A.
dc.creatorKilian, K.
dc.creatorMoskal, P.
dc.creatorOelert, W.
dc.creatorPiskor-Ignatowicz, C.
dc.creatorPrzerwa, J.
dc.creatorRozek, T.
dc.creatorSanto, R.
dc.creatorSchepers, G.
dc.creatorSefzick, T.
dc.creatorSiemaszko, M.
dc.creatorSmyrski, J.
dc.creatorStrzalkowski, A.
dc.creatorTaschner, A.
dc.creatorWinter, P.
dc.creatorWolke, M.
dc.creatorWustner, P.
dc.creatorZipper, W.
dc.date2004-01-19
dc.date.accessioned2026-07-07T12:54:26Z
dc.date.available2026-07-07T12:54:26Z
dc.descriptionMeasurements of the near threshold Lambda and Sigma0 production via the pp-->pK+Lambda/Sigma0 reaction at COSY--11 have shown that the Lambda/Sigma0 cross section ratio exceeds the value at high excess energies Q>=300 MeV by an order of magnitude. For a better understanding additional data have been taken between 13 MeV and 60 MeV excess energy. Within the first 20 MeV excess energy a strong decrease of the cross section ratio is observed, with a less steep decrease in the higher excess energy range. A description of the data with a parametrisation including p-Y final state interactions suggests a much smaller p-Sigma0 FSI compared to the p-Lambda system.
dc.description6 pages, 3 figures, Presented at X. International Conference On Hadron Spectroscopy (Hadron 2003), Aschaffenburg, Germany, 31 Aug - 6 Sep 2003
dc.identifierhttps://arxiv.org/abs/nucl-ex/0401020
dc.identifierhttp://arxiv.org/abs/nucl-ex/0401020
dc.identifierAIP Conf.Proc.717:852-857,2004
dc.identifierdoi:10.1063/1.1799807
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223929
dc.subjectNuclear Experiment
dc.titleEnergy dependence of the Lambda/Sigma0 production cross section ratio in p-p interactions
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