{
  "annotation_id": "0d816999-38fc-4cbc-8258-073e27515cdc",
  "date_created": "2026-03-02T18:00:39.767000Z",
  "date_modified": "2026-03-02T18:00:39.767000Z",
  "file_hash": "a4ea01dff9805d4e001e15f1765b7d1b4a6717dc8b190977bfedc713ab353341",
  "private": false,
  "record": {
    "abstract": "Two-photon E1M1 transition rates are evaluated for heliumlike ions with\nnuclear charges in the range Z = 50-94. The two-photon rates modify previously\npublished lifetimes/transition rates of 2 3P0 states. For isotopes with nuclear\nspin I not equal 0, where hyperfine quenching dominates the 2 3P0 decay,\ntwo-photon contributions are significant; for example, in heliumlike 187 Os the\ntwo-photon correction is 3% of the total rate. For isotopes with I= 0, where\nthe 2 3P0 decay is unquenched, the E1M1 corrections are even more important\nreaching 60% for Z=94. Therefore, to aid in the interpretation of experiments\non hyperfine quenching in heliumlike ions and to provide a more complete\ndatabase for unquenched transitions, a knowledge of E1M1 rates is important.",
    "arxiv_id": "physics/0209086",
    "authors": [
      "I. M. Savukov",
      "W. R. Johnson"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.66.062507",
    "journal_ref": "Phys. Rev. A 66, 062507, 1-5 (2002)",
    "title": "Two-photon E1M1 decay of 2 3P0 states in heavy heliumlike ions",
    "url": "https://arxiv.org/abs/physics/0209086"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "62c24770-a702-414e-a04c-b30c44be7e1f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}