3D solution of Hartree-Fock-Bogoliubov equations for drip-line nuclei
Abstract
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 Hartree-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.
- Publication:
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Nuclear Physics A
- Pub Date:
- February 1996
- DOI:
- 10.1016/0375-9474(96)00036-X
- arXiv:
- arXiv:nucl-th/9512009
- Bibcode:
- 1996NuPhA.600..371T
- Keywords:
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- Nuclear Theory
- E-Print:
- 21 pages, 10 figures