{
  "annotation_id": "0dbac637-6c7c-431e-a494-bdf9c42450d9",
  "date_created": "2026-03-02T18:00:08.647000Z",
  "date_modified": "2026-03-02T18:00:08.647000Z",
  "file_hash": "a15c40d9d35bf34dbcece693f8751bfee8725c74fe7c91582728418573a78906",
  "private": false,
  "record": {
    "abstract": "We study in cranked Nilsson plus random phase approximation shape transitions\nin fast rotating nuclei undergoing backbending, more specifically 156Dy and\n162Yb. We found that a backbending in 156Dy is correlated with the\ndisappearance of the collective, positive signature gamma-vibrational mode in\nthe rotating frame, and, a shape transition (from axial to nonaxial) is\naccompanied with a large acquiring of the gamma-deformation. We show that such\na shape transition can be considered as a phase transition of the first order.\nIn 162Yb the quasiparticle alignment dominates in the backbending and the shape\ntransition (from axial to nonaxial) is accompanied with a smooth transition\nfrom zero to nonzero values of the gamma-deformation. We extend the classical\nLandau theory for rotating nuclei and show that the backbending in 162Yb is\nidentified with the second order phase transition. A description of spectral\nand decay properties of the yrast states and low-lying excitations demonstrates\na good agreement between our results and experimental data.",
    "arxiv_id": "nucl-th/0512036",
    "authors": [
      "J. Kvasil",
      "R. G. Nazmitdinov"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.73.014312",
    "journal_ref": "Phys.Rev. C73 (2006) 014312",
    "title": "Microscopic analysis of shape-phase transitions in even-even N~90   rotating nuclei",
    "url": "https://arxiv.org/abs/nucl-th/0512036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6ef4d256-14b9-4727-8b6a-95cdf80b8309",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}