Abstract
Ground-state properties of neutron-rich nuclei are described in the framework of relativistic Hartree plus Bogoliubov (RH+B) theory. The model uses the NL3 effective interaction in the mean-field Lagrangian, and describes pairing correlations by the pairing part of the finite range Gogny interaction D1S. Two-neutron separation energies and ground-state quadrupole deformations that result from fully self-consistent RH+B solutions are compared with available experimental data. The model predicts a strong suppression of the spherical shell gap for neutron-rich nuclei: the core breaking results in deformed ground states. Shape coexistence is expected for neutron-rich Si, S, and Ar isotopes.
- Received 8 July 1998
DOI:https://doi.org/10.1103/PhysRevC.60.014310
©1999 American Physical Society