Zeitschrift für Physik

, Volume 268, Issue 1, pp 11–18 | Cite as

Nuclear structure of the heavyN=82 isotones:144Sm and146Gd

  • M. Waroquier
  • K. Heyde


For single-closed shell nuclei with a large number of extra-protons, outside theZ=50,N=82 double-closed shell nucleus, a standard shell-model calculation yields dimensions of the Hamiltonian matrices beyond the scope of present computer technology. A quasi-particle (QP) calculation however, is able to describe the most important proton-excitations in a much restricted configuration space. Extended BCS+TDA calculations are performed on the single-closed shell144Sm and146Gd nuclei with a Gaussian force as effective two-body interaction. The influence of the nonconservation of the exact number of extra-protons in the BCS-approach is studied by performing a projection onto the states with an exact number of extra-protons (BCS+P). The first excited 2+, 4+ and 6+ states in146Gd are described mainly by the (1g7/2) 0 8 (2d5/2) 0 4 \((1h11/2)_{J^\pi }^2 \) configuration.


Elementary Particle Computer Technology Present Computer Nuclear Structure Configuration Space 
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Copyright information

© Springer-Verlag 1974

Authors and Affiliations

  • M. Waroquier
    • 1
  • K. Heyde
    • 1
  1. 1.Institute for Nuclear SciencesGentBelgium

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