{
  "annotation_id": "ac7f0c91-b2b0-4f03-a4fc-02986bf72b79",
  "date_created": "2026-03-02T18:00:22.449000Z",
  "date_modified": "2026-03-02T18:00:22.449000Z",
  "file_hash": "553589e5cfccca139c6dd2afa604bb6b457ef3159883bd008a3ee17e216a8e94",
  "private": false,
  "record": {
    "abstract": "We discuss the contributions of higher order terms in weak Hamiltonian to the\nstandard two-neutrino double beta decay. The formalism for the unique first\nforbidden transitions has been developed, and it is shown that they can alter\nthe two-electron energy spectrum. Yet, their effect is too small to screen the\ndetection of exotic neutrinoless double beta decays, which are candidates for\ntesting the physics beyond the standard model.",
    "arxiv_id": "nucl-th/9801001",
    "authors": [
      "C. Barbero",
      "F. Krmpoti\u0107",
      "A. Mariano"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1016/S0370-2693(98)00891-0",
    "journal_ref": "Phys.Lett. B436 (1998) 49-54",
    "title": "Competition between standard and exotic double beta decays",
    "url": "https://arxiv.org/abs/nucl-th/9801001"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1fec87f1-3538-4428-8de5-d560c2c23a2b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}