{
  "annotation_id": "29756540-6f1b-4418-aa5b-dadf1e6844f5",
  "date_created": "2026-03-02T18:01:24.819000Z",
  "date_modified": "2026-03-02T18:01:24.819000Z",
  "file_hash": "1aaae55b133a507412726e67bbc13650a91d7d95b42d6394dcd768f49125cebb",
  "private": false,
  "record": {
    "abstract": "The photoionization cross section $\\sigma$, spin-polarization parameters $P$\nand $Q$, and the angular-distribution asymmetry parameter $\\beta$ are\ncalculated for the $7s$ state of francium for photon energies below 10 eV. Two\ndistinct calculations are presented, one based on many-body perturbation theory\nand another based on the model potential method. Although predictions of the\ntwo calculations are similar, the detailed energy dependence of the\nphotoionization parameters from the two calculations differ. From the\ntheoretical p-wave phase shifts, we infer quantum defects for $p_{1/2}$ and\n$p_{3/2}$ Rydberg series, permitting us to calculate positions of\nexperimentally unknown $p$ states in francium.",
    "arxiv_id": "physics/9907047",
    "authors": [
      "A. Derevianko",
      "W. R. Johnson",
      "H. R. Sadeghpour"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.61.022506",
    "title": "Many-body and model-potential calculations of low-energy photoionization   parameters for Fr",
    "url": "https://arxiv.org/abs/physics/9907047"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "979c0697-3dcd-4e80-886c-31472cd28c9c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}