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Σ- atoms and the ΣN interaction

  • J. Dabrowski
  • J. Rożynek
  • G.S. Anagnostatos

Abstract:

It is shown that among four models of the Nijmegen baryon-baryon interaction only model F --which leads to a repulsive potential felt by the Σ hyperon inside the nucleus-- is consistent both with the analysis of Σ- atoms and of the (K-,π) reactions. The Nijmegen models are used to determine the strong complex single-particle (s.p.) potential of Σ-, and to calculate the strong-interaction shifts and widths of the lowest observed levels of Σ- atoms. The results obtained with model F are in best agreement with the experimental data.

PACS. 13.75.Ev Hyperon-nucleon interactions – 36.10.Gv Mesonic atoms and molecules, hyperonic atoms and molecules 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2002

Authors and Affiliations

  • J. Dabrowski
    • 1
  • J. Rożynek
    • 1
  • G.S. Anagnostatos
    • 2
  1. 1.Theoretical Division, Sołtan Institute for Nuclear Studies, Hoza 69, Pl-00-681 Warsaw, PolandPL
  2. 2.Institute of Nuclear Physics, National Center for Scientific Research “Democritos", GR-153-10 Aghia Paraskevi. Attiki, GreeceGR

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