Relativistic Hartree plus Bogoliubov description of the deformed N=28 region

Lalazissis, G. A. and Vretenar, Dario and Ring, Peter and Robledo, L. M. (1999) Relativistic Hartree plus Bogoliubov description of the deformed N=28 region. Physical Review C, 60 (1). pp. 14310-1. ISSN 0556-2813

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Ground-state properties of neutron-rich N≈28 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 N=28 shell gap for neutron-rich nuclei: the 1f7/2⃗ fp core breaking results in deformed ground states. Shape coexistence is expected for neutron-rich Si, S, and Ar isotopes.

Item Type: Article
Keywords: relativistic Hartree plus Bogoliubov theory, deformed N=28 region
Date: 1999
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (1999) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119211
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 27 Aug 2014 13:37
Last Modified: 27 Aug 2014 13:37

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