{
  "annotation_id": "0b2de073-52d3-4a23-809f-3cbc2c6efa46",
  "date_created": "2026-03-02T18:00:11.734000Z",
  "date_modified": "2026-03-02T18:00:11.734000Z",
  "file_hash": "39e6af30e00b2439a9994369767a6c09faa216d58d716c467c16dfe5eafce46c",
  "private": false,
  "record": {
    "abstract": "One-parameter exactly separable versions of the X(5) and X(5)-beta^2 models,\nlabelled as ES-X(5) and ES-X(5)-beta^2 respectively, are derived by using in\nthe Bohr Hamiltonian potentials of the form u(beta)+u(gamma)/beta^2. Unlike\nX(5), in these models the beta_1 and gamma_1 bands are treated on equal\nfooting. Spacings within the gamma_1 band are well reproduced by both models,\nwhile spacings within the beta_1 band are well reproduced only by\nES-X(5)-beta^2, for which several nuclei with R_{4/2}=E(4_1^+)/E(2_1^+) ratios\nand [normalized to E(2_1^+)] beta_1 and gamma_1 bandheads corresponding to the\nmodel predictions have been found.",
    "arxiv_id": "nucl-th/0612101",
    "authors": [
      "D. Bonatsos",
      "D. Lenis",
      "E. A. McCutchan",
      "D. Petrellis",
      "I. Yigitoglu"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/j.physletb.2006.12.080",
    "journal_ref": "Phys.Lett.B649:394-399,2007",
    "title": "Exactly separable version of X(5) and related models",
    "url": "https://arxiv.org/abs/nucl-th/0612101"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b2748717-5b2a-41c1-8ca6-7353063f4f9f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}