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
  The 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. 
M.Abdel-Bary, S.Abdel-Samad, K.-Th.Brinkmann, H.Clement,   E.Doroshkevich, M.Drochner, S.Dshemuchadse, A.Erhardt, W.Eyrich, ...