Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1995-12-06
Nucl.Phys. A600 (1996) 371-386
Physics
Nuclear Physics
Nuclear Theory
21 pages, 10 figures
Scientific paper
10.1016/0375-9474(96)00036-X
We investigate the possibility of describing triaxial quadrupole deformations for nuclei close to the two-neutron drip line by the Hartree-Fock Bogoliubov method taking into account resonances in the continuum. We use a Skyrme interaction to describe the Hartee-Fock hamiltonian and a density-dependent zero-range interaction to evaluate the pairing field. The mean-field equations are solved in a three-dimensional cubic mesh. We study the stability of the two-neutron separation energies and of the description of the nuclear surface as a function of the number of active mean-field orbitals and of the size of the mesh. The even Ni isotopes are used as a test case and the accuracy as a function of quadrupole deformation is studied by performing constrained calculations. A first application to the study of the two-neutron separation energies in Ni isotopes up to the drip line is presented.
Bonche P.
Flocard H.
Heenen Paul-Henri
Terasaki J.
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