{
  "annotation_id": "634e84e2-09e6-40c1-ad82-b1e62cef4771",
  "date_created": "2026-03-02T18:00:01.130000Z",
  "date_modified": "2026-03-02T18:00:01.130000Z",
  "file_hash": "4dc3e2bcbcb2abaedfeec6abb4c1a6418bf75ed14623a18bec88cef08c84f911",
  "private": false,
  "record": {
    "abstract": "Configuration-constrained calculations of potential-energy surfaces in\neven-even superheavy nuclei reveal systematically the existence at low\nexcitation energies of multi-quasiparticle states with deformed axially\nsymmetric shapes and large angular momenta. These results indicate the\nprevalence of long-lived, multi-quasiparticle isomers. In a quantal system, the\nground state is usually more stable than the excited states. In contrast, in\nsuperheavy nuclei the multi-qausiparticle excitations decrease the probability\nfor both fission and $\\alpha$ decay, implying enhanced stability. Hence, the\nsystematic occurrence of multi-qausiparticle isomers may become crucial for\nfuture production and study of even heavier nuclei. The energies of\nmulti-quasiparticle states and their $\\alpha$ decays are calculated and\ncompared to available data.",
    "arxiv_id": "nucl-th/0404093",
    "authors": [
      "F. R. Xu",
      "E. G. Zhao",
      "R. Wyss",
      "P. M. Walker"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevLett.92.252501",
    "journal_ref": "Phys.Rev.Lett. 92 (2004) 252501",
    "title": "Enhanced Stability of Superheavy Nuclei due to High-Spin Isomerism",
    "url": "https://arxiv.org/abs/nucl-th/0404093"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "49cb122f-5a66-408e-8c19-fadaa3247d6a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}