{
  "annotation_id": "a1329c9d-4d95-4766-b606-76529e5a2929",
  "date_created": "2026-03-02T18:00:22.367000Z",
  "date_modified": "2026-03-02T18:00:22.367000Z",
  "file_hash": "ab679f7ca6e045f7a075297108055ce4021b06fbb9139ce2e30101c216539efd",
  "private": false,
  "record": {
    "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"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "16c99a63-50bb-494a-80b7-2abde757507b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}