{
  "annotation_id": "a45bc57e-ae59-4d03-8d6d-795469a947c8",
  "date_created": "2026-03-02T18:00:18.599000Z",
  "date_modified": "2026-03-02T18:00:18.599000Z",
  "file_hash": "3b8fee07dbae61ca19fc1554398c14a57c62d82b94d37e2d4908d65cde0c688d",
  "private": false,
  "record": {
    "abstract": "We investigate the shell structure of bubble nuclei in simple\nphenomenological shell models and study their binding energy as a function of\nthe radii and of the number of neutron and protons using Strutinsky\u0027s method.\nShell effects come about, on the one hand, by the high degeneracy of levels\nwith large angular momentum and, on the other, by the big energy gaps between\nstates with a different number of radial nodes. Shell energies down to -40 MeV\nare shown to occur for certain magic nuclei. Estimates demonstrate that the\ncalculated shell effects for certain magic numbers of constituents are probably\nlarge enough to produce stability against fission, alpha-, and beta-decay. No\nbubble solutions are found for mass number A \u003c 450.",
    "arxiv_id": "nucl-th/9704061",
    "authors": [
      "Klaus Dietrich",
      "Krzysztof Pomorski"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevLett.80.37",
    "journal_ref": "Phys.Rev.Lett.80:37-40,1998",
    "title": "Stability of bubble nuclei through Shell-Effects",
    "url": "https://arxiv.org/abs/nucl-th/9704061"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d4331c41-8031-45ee-a636-f82ba1e7660d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}