Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2005-10-11
Phys.Rev. C73 (2006) 044312
Physics
Nuclear Physics
Nuclear Theory
14 pages, 8 figures, 3 tables, using REVTEX4
Scientific paper
10.1103/PhysRevC.73.044312
We employ correlated realistic nucleon-nucleon interactions for the description of nuclear ground states throughout the nuclear chart within the Hartree-Fock approximation. The crucial short-range central and tensor correlations, which are induced by the realistic interaction and cannot be described by the Hartree-Fock many-body state itself, are included explicitly by a state-independent unitary transformation in the framework of the unitary correlation operator method (UCOM). Using the correlated realistic interaction V_UCOM resulting from the Argonne V18 potential, bound nuclei are obtained already on the Hartree-Fock level. However, the binding energies are smaller than the experimental values because long-range correlations have not been accounted for. Their inclusion by means of many-body perturbation theory leads to a remarkable agreement with experimental binding energies over the whole mass range from He-4 to Pb-208, even far off the valley of stability. The observed perturbative character of the residual long-range correlations and the apparently small net effect of three-body forces provides promising perspectives for a unified nuclear structure description.
Feldmeier Hans
Hergert H.
Neff Thomas
Paar Nils
Papakonstantinou Pagona
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