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On the search for a narrow penta-quark Z+-baryon in NN interactions

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Abstract:

The possibility for an observation of a narrow penta-quark Z+-baryon in NN reactions is discussed. It is shown that the pp↦nΣ+ K + reaction at excess energies around 100 MeV above threshold provides optimal conditions for Z+-baryon detection by an analysis of the nK+ invariant mass spectrum, if the Z+ mass is located around 1.5 GeV involving a rather narrow width.

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Authors and Affiliations

  1. Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany, , , , , , DE

    M.V. Polyakov & K. Goeke

  2. Institut für Theoretische Physik, Universität Giessen, D-35392 Giessen, Germany, , , , , , DE

    A. Sibirtsev & W. Cassing

  3. Special Research Center for the Subatomic Structure of Matter (CSSM) and Department of Physics and Mathematical Physics, University of Adelaide, SA 5005, Australia, , , , , , AU

    K. Tsushima

Authors
  1. M.V. Polyakov
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  2. A. Sibirtsev
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  3. K. Tsushima
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  4. W. Cassing
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  5. K. Goeke
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Received: 24 May 2000 / Accepted: 3 August 2000

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Polyakov, M., Sibirtsev, A., Tsushima, K. et al. On the search for a narrow penta-quark Z+-baryon in NN interactions. Eur Phys J A 9, 115–118 (2000). https://doi.org/10.1007/s100500070061

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  • DOI: https://doi.org/10.1007/s100500070061

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