{
  "annotation_id": "74acdc23-16c3-4dd9-bbde-c4c17911c324",
  "date_created": "2026-03-02T17:59:57.643000Z",
  "date_modified": "2026-03-02T17:59:57.643000Z",
  "file_hash": "532ad348a5aa822ba16942efb84802ce96fbd315998d24acf8844892260a9e4d",
  "private": false,
  "record": {
    "abstract": "A systematic study of isotope chains in the rare--earth region is presented.\nFor the chains (144-154)Nd, (146-160)Sm, (148-162)Gd, and (150-166)Dy, energy\nlevels, E2 transition rates, and two--neutron separation energies are described\nby using the most general (up to two--body terms) IBM Hamiltonian. For each\nisotope chain a general fit is performed in such a way that all parameters but\none are kept fixed to describe the whole chain. In this region nuclei evolve\nfrom spherical to deformed shapes and a method based on catastrophe theory, in\ncombination with a coherent state analysis to generate the IBM energy surfaces,\nis used to identify critical phase transition points.",
    "arxiv_id": "nucl-th/0304008",
    "authors": [
      "J. E. Garcia-Ramos",
      "J. M Arias",
      "J. Barea",
      "A. Frank"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.68.024307",
    "journal_ref": "Phys.Rev. C68 (2003) 024307",
    "title": "Phase transitions and critical points in the rare-earth region",
    "url": "https://arxiv.org/abs/nucl-th/0304008"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "81f5d4ee-ed25-41d2-8b09-1cfa839fd208",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}