{
  "annotation_id": "ed31d115-e406-4a0c-bcde-25ee135f305c",
  "date_created": "2026-03-02T17:59:57.644000Z",
  "date_modified": "2026-03-02T17:59:57.644000Z",
  "file_hash": "4f9c0c045f6191472956654c48f8e61f6c5181a1690f9c5619d82db7f6bd1b6c",
  "private": false,
  "record": {
    "abstract": "Using all the available empirical information, we analyse the spacing\ndistributions of low-lying 2+ levels in even-even nuclei by comparing them with\na theoretical distribution characterized by a single parameter (the chaoticity\nparameter f). We use the method of Bayesian inference. We show that the\nnecessary unfolding procedure generally leads to an overestimate of f. We find\nthat f varies strongly with the ratio of the excitation energies of the first\n4+ and 2+ levels and assumes particularly small values in nuclei that have one\nof the dynamical symmetries of the Interacting Boson Model.",
    "arxiv_id": "nucl-th/0304027",
    "authors": [
      "A. Y. Abul--Magd",
      "H. L. Harney",
      "M. H. Simbel",
      "H. A. Weidenmueller"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1142/9789812702760_0049",
    "title": "Regularity and Chaos in low-lying 2+ states of even-even nuclei",
    "url": "https://arxiv.org/abs/nucl-th/0304027"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ab7ee6c1-39b2-4da3-be57-7ee880c89f1c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}