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Chiral dynamics in the \(pp \to d K^ + \bar{K^0}\) and \(pp \to d \pi^ + \eta\) reactions

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Abstract.

We perform a study of the final-state interactions of the \( K^ + \bar{K^0}\) and the \(\bar{K^0}d\) systems in the reactions \(pp \to d K^ + \bar{K^0}\) and \(pp \to d \pi^ + \eta\). The interactions of the mesons are accounted for by using chiral unitary techniques, which generate dynamically the a 0(980)-resonance, and the \(\bar{K^0}d\) interaction is also taken into account. The amount of \(\pi^ + \eta\) versus \( K^ + \bar{K^0}\) production is shown to depend critically on the primary mixture of the two mechanisms, with large interference effects due to final-state interactions

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Authors and Affiliations

  1. Departamento de Física Teórica and IFIC Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Aptad. 22085, 46071, Valencia, Spain

    E. Oset

  2. Departamento de Fisica, Universidad de Murcia, Spain

    J. A. Oller

  3. Institut für Kernphysik (Theorie), Forschungszentrum Jülich, D-52425, Jülich, Germany

    U.-G. Meißner

  4. Institut für Theoretische Physik, Karl-Franzens-Universität Graz, A-8010, Graz, Austria

    U.-G. Meißner

Authors
  1. E. Oset
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  2. J. A. Oller
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  3. U.-G. Meißner
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Correspondence to E. Oset.

Additional information

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

PACS:

12.39.Fe Chiral Lagrangians - 13.75.Lb Meson-meson interactions - 13.75.Cs Nucleon-nucleon interactions (including antinucleons, deuterons, etc.) - 13.75.Gx Pion-baryon interactions

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Oset, E., Oller, J.A. & Meißner, UG. Chiral dynamics in the \(pp \to d K^ + \bar{K^0}\) and \(pp \to d \pi^ + \eta\) reactions. Eur. Phys. J. A 18, 343–346 (2003). https://doi.org/10.1140/epja/i2002-10232-4

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  • DOI: https://doi.org/10.1140/epja/i2002-10232-4

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