Evidence for a narrow resonance at 1530 MeV/c2 in the K0 p - system of the reaction pp --> Sigma+ K0 p from the COSY-TOF experiment

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dc.creatorAbdel-Bary, M.
dc.creatorAbdel-Samad, S.
dc.creatorBrinkmann, K. -Th.
dc.creatorClement, H.
dc.creatorDoroshkevich, E.
dc.creatorDrochner, M.
dc.creatorDshemuchadse, S.
dc.creatorErhardt, A.
dc.creatorEyrich, W.
dc.creatorFilges, D.
dc.creatorFilippi, A.
dc.creatorFreiesleben, H.
dc.creatorFritsch, M.
dc.creatorGeorgi, J.
dc.creatorGillitzer, A.
dc.creatorHesselbarth, D.
dc.creatorJaekel, R.
dc.creatorJakob, B.
dc.creatorKarsch, L.
dc.creatorKilian, K.
dc.creatorKoch, H.
dc.creatorKress, J.
dc.creatorKuhlmann, E.
dc.creatorMarcello, S.
dc.creatorMarwinski, S.
dc.creatorMeier, R.
dc.creatorMichel, P.
dc.creatorMoeller, K.
dc.creatorMoertel, H.
dc.creatorMorsch, H. P.
dc.creatorPaul, N.
dc.creatorPinna, L.
dc.creatorPizzolotto, C.
dc.creatorRichter, M.
dc.creatorRoderburg, E.
dc.creatorSchoenmeier, P.
dc.creatorSchroeder, W.
dc.creatorSchulte-Wissermann, M.
dc.creatorSefzick, T.
dc.creatorStinzing, F.
dc.creatorSun, G. Y.
dc.creatorTeufel, A.
dc.creatorUcar, A.
dc.creatorWagner, G. J.
dc.creatorWagnerc, M.
dc.creatorWilms, A.
dc.creatorWintz, P.
dc.creatorWirth, St.
dc.creatorWuestner, P.
dc.date2004-03-05
dc.date.accessioned2026-07-07T10:28:24Z
dc.date.available2026-07-07T10:28:24Z
dc.descriptionThe hadronic reaction pp --> Sigma+ K0 p was measured exclusively at a beam momentum of 2.95 GeV/c using the TOF detector at the COSY storage ring. A narrow peak was observed in the invariant mass spectrum of the K0 p subsystem at 1530 +- 5 MeV/c2 with a significance of 4 - 6 standard deviations, depending on background assumptions. The upper limit of 18 +- 4 MeV/c2 (FWHM) for its width is given by the experimental resolution. The corresponding total cross section is estimated to be about 0.4 +- 0.1(stat) +- 0.1(syst) microbarn. Since a resonance in this subsystem must have strangeness S = + 1 we claim it to be the Theta+ state for which very recently evidence was found in various experiments.
dc.description11 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/hep-ex/0403011
dc.identifierhttp://arxiv.org/abs/hep-ex/0403011
dc.identifierPhys.Lett.B595:127-134,2004
dc.identifierdoi:10.1016/j.physletb.2004.05.067
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177433
dc.subjectHigh Energy Physics - Experiment
dc.titleEvidence for a narrow resonance at 1530 MeV/c2 in the K0 p - system of the reaction pp --> Sigma+ K0 p from the COSY-TOF experiment
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