dorsal/arxiv
View SchemaRelativistic Hartree-Bogoliubov description of the deformed N = 28 region
| Authors | G. A. Lalazissis, D. Vretenar, P. Ring, M. Stoitsov, L. Robledo |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9807029 |
| URL | https://arxiv.org/abs/nucl-th/9807029 |
| DOI | 10.1103/PhysRevC.60.014310 |
| Journal | Phys.Rev. C60 (1999) 014310 |
Abstract
Ground-state properties of neutron-rich $N \approx 28$ nuclei are described in the framework of Relativistic Hartree Bogoliubov (RHB) 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 RHB 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 $1f7/2 \to fp$ core breaking results in deformed ground states. Shape coexistence is expected for neutron-rich Si, S and Ar isotopes.
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"abstract": "Ground-state properties of neutron-rich $N \\approx 28$ nuclei are described\nin the framework of Relativistic Hartree Bogoliubov (RHB) theory. The model\nuses the NL3 effective interaction in the mean-field Lagrangian, and describes\npairing correlations by the pairing part of the finite range Gogny interaction\nD1S. Two-neutron separation energies and ground-state quadrupole deformations\nthat result from fully self-consistent RHB solutions, are compared with\navailable experimental data. The model predicts a strong suppression of the\nspherical N=28 shell gap for neutron-rich nuclei: the $1f7/2 \\to fp$ core\nbreaking results in deformed ground states. Shape coexistence is expected for\nneutron-rich Si, S and Ar isotopes.",
"arxiv_id": "nucl-th/9807029",
"authors": [
"G. A. Lalazissis",
"D. Vretenar",
"P. Ring",
"M. Stoitsov",
"L. Robledo"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.60.014310",
"journal_ref": "Phys.Rev. C60 (1999) 014310",
"title": "Relativistic Hartree-Bogoliubov description of the deformed N = 28 region",
"url": "https://arxiv.org/abs/nucl-th/9807029"
},
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