{
  "id": "nucl-th/0212057",
  "version": "v2",
  "published": "2002-12-13T09:36:03.000Z",
  "updated": "2004-11-30T15:17:13.000Z",
  "title": "Statistics of 2+ Levels in Even-Even Nuclei",
  "authors": [
    "A. Y. Abul-Magd",
    "H. L. Harney",
    "M. H. Simbel",
    "H. A. Weidenmueller"
  ],
  "comment": "11 pages, 2 figures; v2: added references; layout improved",
  "journal": "Phys.Lett. B579 (2004) 278-284",
  "categories": [
    "nucl-th",
    "physics.data-an"
  ],
  "abstract": "Using all the available empirical information, we analyze the spacing distributions of low-lying 2-plus levels of even-even nuclei. To obtain statistically relevant samples, the nuclei are grouped into classes defined by the ratio R4/2 of the excitation energies of the first 4-plus and 2-plus levels. This ratio serves as a measure of collectivity in nuclei. With the help of Bayesian inference, we determine the chaoticity parameter for each class. This parameter is found to vary strongly with R4/2 and takes particularly small values in nuclei that have one of the dynamical symmetries of the interacting Boson model.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2004-11-30T15:17:13.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "21.60.Ev",
      "24.60.Lz",
      "02.50.Tt"
    ],
    "keywords": [
      "even-even nuclei",
      "statistics",
      "excitation energies",
      "statistically relevant samples",
      "bayesian inference"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1016/j.physletb.2003.07.092"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 604609
    }
  }
}