{
  "annotation_id": "9578e82d-6e0b-495a-a681-78b238acd607",
  "date_created": "2026-03-02T18:00:53.424000Z",
  "date_modified": "2026-03-02T18:00:53.424000Z",
  "file_hash": "2479d8b6d23e2e21ce8633a560a81c57848357a7864b6faf74fb1e920939daea",
  "private": false,
  "record": {
    "abstract": "Energies of np (n=6-9), ns (n=7-9), nd (n=6-8), and nf (n=5-6) states in Tl I\nand Pb II are obtained using relativistic many-body perturbation theory.\nReduced matrix elements, oscillator strengths, transition rates, and lifetimes\nare determined for the 72 possible electric-dipole transitions.\nElectric-quadrupole and magnetic-dipole matrix elements are evaluated to obtain\nnp(3/2) - mp(1/2) (n,m=6,7) transition rates. Hyperfine constants A are\nevaluated for a number of states in 205Tl. First-, second-, third-, and\nall-order corrections to the energies and matrix elements and first- and\nsecond-order Breit corrections to energies are calculated. In our\nimplementation of the all-order method, single and double excitations of\nDirac-Fock wave functions are included to all orders in perturbation theory.\nThese calculations provide a theoretical benchmark for comparison with\nexperiment and theory.",
    "arxiv_id": "physics/0410079",
    "authors": [
      "U. I. Safronova",
      "M. S. Safronova",
      "W. R. Johnson"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.71.052506",
    "title": "Excitation energies, hyperfine constants, E1, E2, M1 transition rates,   and lifetimes of (6s2)nl states in Tl I and Pb II",
    "url": "https://arxiv.org/abs/physics/0410079"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8d1311da-2890-4d5d-bae1-03059e1bdc13",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}