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Investigation of the a 0 + (980)-resonance with ANKE

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Abstract.

Two experiments on the production of the a 0 + (980)-resonance in the reaction \(pp \to da_0^ + \) were performed with the ANKE spectrometer at COSY-Jülich. The decay channels \(a_0^ + \to K^ + \overline{K^0}\) and \(a_0^ + \to \pi^ + \eta\) were measured simultaneously at energies T = 2.65 GeV and T = 2.83 GeV. For the reaction \(pp \to dK^ + \overline{K^0}\) a total production cross-section of \(\sim 50\) nb has been deduced for T = 2.65 GeV. Further goals of the data analysis are to determine differential cross-sections like angular distributions and the branching ratio \(a_0^ + \to K^ + \overline{K^0}/ \pi^ + \eta\).

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Authors and Affiliations

  1. Institute for Theoretical and Experimental Physics, 117218, Moscow,, Russia

    P. Fedorets

  2. Forschungszentrum Jülich, Institut für Kernphysik, 52425, Jülich, Germany

    V. Kleber

Authors
  1. P. Fedorets
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  2. V. Kleber
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Corresponding author

Correspondence to P. Fedorets.

Additional information

Received: 30 September 2002, Published online: 22 October 2003

PACS:

13.75.Cs Nucleon-nucleon interactions (including antinucleons, deuterons, etc.) - 25.40.Ve Other reactions above meson production thresholds (energies > 400 MeV)

P. Fedorets: For the ANKE Collaboration: Complete collaboration list available via: http: //www.fz-juelich.de/ikp/anke

V. Kleber: For the ANKE Collaboration: Complete collaboration list available via: http: //www.fz-juelich.de/ikp/anke

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Fedorets, P., Kleber, V. Investigation of the a 0 + (980)-resonance with ANKE. Eur. Phys. J. A 18, 339–341 (2003). https://doi.org/10.1140/epja/i2002-10230-6

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  • DOI: https://doi.org/10.1140/epja/i2002-10230-6

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