This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1016/j.physletb.2007.04.023 in citations.
Please use the identifier: http://hdl.handle.net/2128/10539 in citations.
Improved study of a possible Theta+ production in the pp -> pK0 Sigma+ reaction with the COSY-TOF spectrometer
Improved study of a possible Theta+ production in the pp -> pK0 Sigma+ reaction with the COSY-TOF spectrometer
The pp -> pK(0)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 resonance, the Theta+ pentaquark, is populated at 1.53 GeV/c(2) in the pK0 subsystem with a data sampl...
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Personal Name(s): | Abdel-Bary, M. |
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Abdel-Samad, S. / Brinkmann, K. T. / Castelijns, R. / Clement, H. / Dietrich, J. / Doroshkevich, E. / Dshemuchadse, S. / Ehrhardt, K. / Erhardt, A / Eyrich, W. / Freiesleben, H. / Gast, W. / Georgi, J. / Gillitzer, A. / Karsch, L. / Kilian, K. / Krapp, M. / Kuhlmann, E. / Lehmann, A. / Morsch, H.-P. / Paul, N. / Pinna, L. / Pizzolotto, C. / Ritman, J. / Roderburg, E. / Schadmand, S. / Schönmeier, P. / Schröder, W. / Schulte-Wissermann, M. / Sefzick, T. / Teufel, A. / Ucar, A. / Wüstner, P. / Zupranski, P. | |
Contributing Institute: |
Experimentelle Hadronstruktur; IKP-1 |
Published in: | Physics letters / B, 649 (2007) S. 252 - 257 |
Imprint: |
Amsterdam
North-Holland Publ.
2007
|
Physical Description: |
252 - 257 |
DOI: |
10.1016/j.physletb.2007.04.023 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
Physics Letters B
649 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/10539 in citations.
The pp -> pK(0)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 resonance, the Theta+ pentaquark, is populated at 1.53 GeV/c(2) in the pK0 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 -> Z+ Theta+) < 0.15 mu b at the 95% confidence level. (C) 2007 Elsevier B.V. All rights reserved. |