No-core shell-model calculations with starting-energy-independent multivalued effective interactions

P. Navrátil and B. R. Barrett
Phys. Rev. C 54, 2986 – Published 1 December 1996
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Abstract

Large-space no-core shell-model calculations have been performed for H3, He4, He5, Li6, and He6, using a starting-energy-independent two-body effective interaction derived by application of the Lee-Suzuki similarity transformation. This transformation can be performed by direct calculation or by different iteration procedures, which are described. A possible way of reducing the auxiliary potential influence on the two-body effective interaction has also been introduced. The many-body effects have been partially taken into account by employing the recently introduced multivalued effective interaction approach. Dependence of the He5 energy levels on the harmonic-oscillator frequency as well as on the size of the model space has been studied. The Reid 93 nucleon-nucleon potential has been used in the study, but results have also been obtained using the Nijmegen II potential for comparison. © 1996 The American Physical Society.

  • Received 10 July 1996

DOI:https://doi.org/10.1103/PhysRevC.54.2986

©1996 American Physical Society

Authors & Affiliations

P. Navrátil and B. R. Barrett

  • Department of Physics, University of Arizona, Tucson, Arizona 85721

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Vol. 54, Iss. 6 — December 1996

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