Improved study of a possible Theta+ production in the pp -> p K0 sigma+ reaction with the COSY-TOF spectrometer

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dc.creatorTOF collaboration
dc.creatorAbdel-Bary, M.
dc.creatorAbdel-Samad, S.
dc.creatorBrinkmann, K. -Th.
dc.creatorCastelijns, R.
dc.creatorClement, H.
dc.creatorDietrich, J.
dc.creatorDshemuchadse, S.
dc.creatorDorochkevitch, E.
dc.creatorEyrich, W.
dc.creatorEhrhardt, K.
dc.creatorErhardt, A.
dc.creatorFreiesleben, H.
dc.creatorGast, W.
dc.creatorGeorgi, J.
dc.creatorGillitzer, A.
dc.creatorJaeger, H.
dc.creatorJaekel, R.
dc.creatorKarsch, L.
dc.creatorKilian, K.
dc.creatorKrapp, M.
dc.creatorKuhlmann, E.
dc.creatorLehmann, A.
dc.creatorMorsch, H. P.
dc.creatorPaul, N.
dc.creatorPinna, L.
dc.creatorPizzolotto, C.
dc.creatorRitman, J.
dc.creatorRoderburg, E.
dc.creatorSchadmand, S.
dc.creatorSchoenmeier, P.
dc.creatorSchulte-Wissermann, M.
dc.creatorSchroeder, W.
dc.creatorSefzick, T.
dc.creatorTeufel, A.
dc.creatorUcar, A.
dc.creatorUllrich, W.
dc.creatorWenzel, R.
dc.creatorWintz, P.
dc.creatorWuestner, P.
dc.creatorZupranski, P.
dc.date2006-12-20
dc.date2007-05-08
dc.date.accessioned2026-07-07T11:01:51Z
dc.date.available2026-07-07T11:01:51Z
dc.descriptionThe pp -> p K0 Sigma+ reaction was investigated with the TOF spectrometer at COSY at 3.059 GeV/c incident beam momentum. The main objective was to clarify whether or not a narrow exotic S = +1 resnance, the Theta+ pentaquark, is populated at 1.53 GeV/c2 in the K0 p subsystem with a data sample of much higher statistical significance compared to the previously reported data in this channel. An analysis of these data does not confirm the existence of the Theta+ pentaquark. This is expressed as an upper limit for the cross section sigma (pp -> p K0 Sigma+) < 0.15 microbarn at the 95 percent confidence level.
dc.description11 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/hep-ex/0612048
dc.identifierhttp://arxiv.org/abs/hep-ex/0612048
dc.identifierPhys.Lett.B649:252-257,2007
dc.identifierdoi:10.1016/j.physletb.2007.04.023
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188078
dc.subjectHigh Energy Physics - Experiment
dc.titleImproved study of a possible Theta+ production in the pp -> p K0 sigma+ reaction with the COSY-TOF spectrometer
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