{
  "annotation_id": "161e2961-196a-4642-932f-e3f3ceb96b76",
  "date_created": "2026-03-02T18:00:08.601000Z",
  "date_modified": "2026-03-02T18:00:08.601000Z",
  "file_hash": "16f97d889bb35de218d7df65341164cb4bfa556068605885572f6370023ddb13",
  "private": false,
  "record": {
    "abstract": "We study the effect of deformation on the two-neutrino double beta decay for\nground state to ground state transitions in all the nuclei whose half-lives\nhave been measured. Our theoretical framework is a deformed QRPA based in\nWoods-Saxon or Hartree-Fock mean fields. We are able to reproduce at the same\ntime the main characteristics of the two single beta branches, as well as the\ndouble beta matrix elements. We find a suppression of the double beta matrix\nelement with respect to the spherical case when the parent and daughter nuclei\nhave different deformations.",
    "arxiv_id": "nucl-th/0604036",
    "authors": [
      "R. Alvarez-Rodriguez",
      "P. Sarriguren",
      "E. Moya de Guerra",
      "L. Pacearescu",
      "A. Faessler",
      "F. Simkovic"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/j.ppnp.2005.10.003",
    "journal_ref": "Prog.Part.Nucl.Phys. 57 (2006) 251-253",
    "title": "Effect of deformation on two-neutrino double beta decay matrix elements",
    "url": "https://arxiv.org/abs/nucl-th/0604036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "709623ee-64e7-4c90-a631-d62e941b4fed",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}