{
  "annotation_id": "d8a9c63a-04f2-4544-9a83-466802cefd21",
  "date_created": "2026-03-02T18:00:01.480000Z",
  "date_modified": "2026-03-02T18:00:01.480000Z",
  "file_hash": "846a37580a6d5e72f228f7b294e3868228c1c44e0a97a459b91872bf149dca3f",
  "private": false,
  "record": {
    "abstract": "The validity of the K-quantum number in rapidly rotating warm nuclei is\ninvestigated as a function of thermal excitation energy U and angular momentum\nI, for the rare-earth nucleus 163Er. The quantal eigenstates are described with\na shell model which combines a cranked Nilsson mean-field and a residual\ntwo-body interaction, together with a term which takes into account the angular\nmomentum carried by the K-quantum number in an approximate way. K-mixing is\nproduced by the interplay of the Coriolis interaction and the residual\ninteraction; it is weak in the region of the discrete rotational bands (U\n\\lesim 1MeV), but it gradually increases until the limit of complete violation\nof the K-quantum number is approached around U \\sim 2 - 2.5 MeV. The calculated\nmatrix elements between bands having different K-quantum numbers decrease\nexponentially as a function of $\\Delta K$, in qualitative agreement with recent\ndata.",
    "arxiv_id": "nucl-th/0403025",
    "authors": [
      "M. Matsuo",
      "T. Dossing",
      "A. Bracco",
      "G. B. Hagemann",
      "B. Herskind",
      "S. Leoni",
      "E. Vigezzi"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/j.nuclphysa.2004.03.004",
    "journal_ref": "Nucl.Phys. A736 (2004) 223-240",
    "title": "Violation and persistence of the K-quantum number in warm rotating   nuclei",
    "url": "https://arxiv.org/abs/nucl-th/0403025"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "53f1895a-fa25-48e5-88bf-a69a84904ec0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}