TY - JOUR AU - Eyrich, W. AU - Brinkmann, K. AU - Abdel-Bary, M. AU - Abdel-Samad, S. AU - Clement, H. AU - Doroshkevich, E. AU - Dshemuchadse, S. AU - Dutz, H. AU - Ehrhardt, K. AU - Erhardt, A. AU - Filippi, L. V. AU - Freiesleben, H. AU - Fritsch, M. AU - Georgi, J. AU - Gillitzer, C. G. AU - Gonser, M. A. AU - Jäkel, R. AU - Karsch, L. AU - Kilian, K. AU - Koch, H. AU - Kreß, J. AU - Kuhlmann, E. AU - Marcello, S. AU - Meyer, W. AU - Michel, P. AU - Morsch, H. P. AU - Möller, K. AU - Mörtel, H. AU - Naumann, L. AU - Pinna, L. AU - Pizzolotto, L. AU - Roderburg, E. AU - Schamlott, A. AU - Schönmeier, P. AU - Schröder, W. AU - Schulter-Wissermann, M. AU - Sefzick, T. AU - Steinke, M. AU - Stinzing, F. AU - Sun, G. Y. AU - Ucar, A. AU - Ullrich, W. AU - Wagner, G. J. AU - Wagner, M. AU - Wilms, A. AU - Wintz, P. AU - Wirth, S. AU - Wüstner, P. AU - Zupranski, P. TI - COSY-TOF Research on Theta+ JO - Acta physica Polonica / B VL - 36 SN - 0587-4254 CY - Cracow PB - Inst. of Physics, Jagellonian Univ. M1 - PreJuSER-50429 SP - 2189 PY - 2005 N1 - Record converted from VDB: 12.11.2012 AB - Using the TOF detector at the COSY storage ring the hadronic reaction pp -> Sigma(+)K(0)p was measured exclusively at a beam momentum of 2.95 GeV/c. A narrow peak was observed in the invariant mass spectrum of the K(0)p subsystem at 1530 +/- 15 McV/c(2) with a significance of 4-6 standard deviations, depending on background assumptions. The upper limit of 18 +/- 4 MeV/c(2) (FWHM) for its width is given by the experimental resolution. 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. To come to a final decision on the existence of the Theta(+) very recently COSY-TOF performed a measurement which will give results with strongly improved statistical accuracy. KW - J (WoSType) LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:000230557300004 UR - https://juser.fz-juelich.de/record/50429 ER -