• Spectroscopy of light nuclei with skyrme-type interactions

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      https://www.ias.ac.in/article/fulltext/pram/013/05/0475-0493

    • Keywords

       

      Skyrme interaction; density dependent Hartree-Fock; band averaged density; projected spectra; electromagnetic properties; 8Be; 12C; 16O; 20Ne

    • Abstract

       

      Deformed Hartree-Fock calculations are performed for some light nuclei in a large configuration space consisting of first four major shells. The interaction employed is the modified Skyrme interaction in which the deformed density is replaced by the band averaged scalar density that makes the Hamiltonian rotationally invariant rendering the spectroscopic calculations feasible. It is shown that the introduction of density dependence spreads out the energy spectra and that the Skyrme variant SIV which has a weak density dependence gives best overall agreement for energy spectra and the available data for the electromagnetic properties of the nuclei studied. It is found that the maximum contribution to the energy of any state in the low lying spectrum comes from thes-state attractive ands-state repulsive parts of the Skyrme interaction. It is also shown that when two-body density dependent version of Skyrme interaction is used, the Koopmans theorem no longer holds.

    • Author Affiliations

       

      V B Kamble1 2 S B Khadkikar1

      1. Physical Research Laboratory, Ahmedabad - 380 009
      2. Vikram A. Sarabhai Community Science Centre, Ahmedabad - 380 009
    • Dates

       
  • Pramana – Journal of Physics | News

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