{
  "annotation_id": "192c5ca0-78a2-4863-869f-04d6e9492884",
  "date_created": "2026-03-02T18:00:42.947000Z",
  "date_modified": "2026-03-02T18:00:42.947000Z",
  "file_hash": "50d42410c7c033ece917a2f9075640dcb7a22f446747faaa5d7aa6250b74d8c3",
  "private": false,
  "record": {
    "abstract": "We account for the different symmetries of the 2^{1,3}S helium excited states\nin a quasiclassical description of the knockout mechanism augmented by a\nquantum shakeoff contribution. We are thus able to formulate the separate\ncontribution of the knockout and shakeoff mechanisms for double photoionization\nfor any excess energy from the 2^{1,3}S states. Photoionization ratios and\nsingly differential cross sections calculated for the 2^{1,3}S excited states\nof helium are found to be in very good agreement with recent theoretical\nresults.",
    "arxiv_id": "physics/0303054",
    "authors": [
      "A. Emmanouilidou",
      "T. Schneider",
      "J. -M. Rost"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1088/0953-4075/36/13/303",
    "journal_ref": "Journal of Physics B, 36, 2717 (2003)",
    "title": "Quasiclassical double photoionization from the 2^{1,3}S excited states   of helium including shakeoff",
    "url": "https://arxiv.org/abs/physics/0303054"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8ba06b8e-4831-450d-bdbd-1beb1feb7855",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}