Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1996-09-20
Phys.Rev.C54:2986-2995,1996
Physics
Nuclear Physics
Nuclear Theory
19 pages. REVTEX. 2 PostScript figures
Scientific paper
10.1103/PhysRevC.54.2986
Large-space no-core shell model calculations have been performed for A=3-6 nuclei, 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 multi-valued 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.
Barrett Bruce R.
Navratil Petr
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