{
  "annotation_id": "431da7a8-abb1-4437-9513-21a11d8ebfa0",
  "date_created": "2026-03-02T18:00:08.084000Z",
  "date_modified": "2026-03-02T18:00:08.084000Z",
  "file_hash": "a587c35a92c9612d6c8b656c3fa1e4de110cbd6af1fc6064bfbfba4b5efac930",
  "private": false,
  "record": {
    "abstract": "We propose a collective model formalism which describes the strong parity\nshift observed in low-lying spectra of nuclei with octupole deformations\ntogether with the fine rotational band structure developed at higher angular\nmomenta. The parity effect is obtained by the Schroedinger equation for\noscillations of the reflection asymmetric (octupole) shape between two opposite\norientations in an angular momentum dependent double-well potential. The\nrotational structure is obtained by a collective quadrupole-octupole rotation\nHamiltonian. The model scheme reproduces the complicated beat staggering\npatterns observed in the octupole bands of light actinide nuclei. It explains\nthe angular momentum evolution of octupole spectra as the interplay between the\noctupole shape oscillation (parity shift) mode and the stable\nquadrupole-octupole rotation mode.",
    "arxiv_id": "nucl-th/0603057",
    "authors": [
      "N. Minkov",
      "P. Yotov",
      "S. Drenska",
      "W. Scheid"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1088/0954-3899/32/4/008",
    "journal_ref": "J.Phys. G32 (2006) 497",
    "title": "Parity shift and beat staggering structure of octupole bands in a   collective model for quadrupole-octupole deformed nuclei",
    "url": "https://arxiv.org/abs/nucl-th/0603057"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "44d9f20c-7de0-41df-a483-97d0ccf71c50",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}