{
  "annotation_id": "bbfea2a4-a6c2-45f8-886f-92757b89bec7",
  "date_created": "2026-03-02T18:00:14.166000Z",
  "date_modified": "2026-03-02T18:00:14.166000Z",
  "file_hash": "8c9f35f1890f25dc508b71c232a48b1c443d11a9efc4e1fd2448394d5de24619",
  "private": false,
  "record": {
    "abstract": "The zero neutrino mode of the double beta decay in heavy deformed nuclei is\ninvestigated in the framework of the pseudo SU(3) model, which has provided an\naccurate description of collective nuclear structure and predicted half-lives\nfor the two neutrino mode in good agreement with experiments. In the case of\n$^{238}U$ the calculated zero neutrino half-life is at least three orders of\nmagnitude greater than the two neutrino one, giving strong support of the\nidentification of the radiochemically determined half-life as being the two\nneutrino double beta decay. For $^{150}Nd$ the zero neutrino matrix elements\nare of the order of magnitude of, but lesser than, those evaluated using the\nQRPA. This result confirms that different nuclear models produce similar zero\nneutrino matrix elements, contrary to the two neutrino case. Using these pseudo\nSU(3) results and the upper limit for the neutrino mass we estimate the\n$\\beta\\beta_{0\\nu}$ half-lives for six nuclei. An upper limit for majoron\ncoupling constant is extracted from the experimental data.",
    "arxiv_id": "nucl-th/9407022",
    "authors": [
      "Jorge G. Hirsch",
      "O. Casta\u00f1os",
      "P. O. Hess"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/0375-9474(94)00464-X",
    "journal_ref": "Nucl.Phys. A582 (1995) 124-140",
    "title": "Neutrinoless Double Beta Decay in Heavy Deformed Nuclei",
    "url": "https://arxiv.org/abs/nucl-th/9407022"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e9174809-9caf-4d31-ac3c-6176083834a4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}