{
  "annotation_id": "0e4dabf7-d9f7-4af3-bd2d-041e27512cf0",
  "date_created": "2026-03-02T18:01:25.139000Z",
  "date_modified": "2026-03-02T18:01:25.139000Z",
  "file_hash": "a97cb5d359e311fa0fd6c0c84327372b01b8e98360510af84830e586460db728",
  "private": false,
  "record": {
    "abstract": "The electromagnetic interactions of electrons and muons can be described to\nvery high accuracy within the framework of standard theory, in particular\nwithin the hydrogen-like muonium atom. Therefore precision measurements allow\nto test basic interactions in physics and to search for yet unknown forces.\nAccurate values for fundamental constants can be obtained. Results from\nexperiments on the ground state hyperfine structure and the 1s-2s intervals in\nmuonium are described together with their relations to a new measurement of the\nmuon magnetic anomaly.",
    "arxiv_id": "physics/9910023",
    "authors": [
      "Klaus Jungmann"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1023/A:1012639500419",
    "journal_ref": "Hyperfine Interact.127:189-196,2000",
    "title": "Muonium Spectroscopy",
    "url": "https://arxiv.org/abs/physics/9910023"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "971e2d4d-b7ed-4915-8895-14fe5ced9f5a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}