{
  "annotation_id": "73758647-b47b-45fa-87f8-88e882664cf3",
  "date_created": "2026-03-02T18:00:08.649000Z",
  "date_modified": "2026-03-02T18:00:08.649000Z",
  "file_hash": "aa5c2d6bbf14c50a60f69b833f5af0c85489a53f686a5a66a008ec6c5db88425",
  "private": false,
  "record": {
    "abstract": "It is shown that isospin-breaking corrections to the pion-deuteron scattering\nlength can be very large, because of the vanishing of the isospin-symmetric\ncontribution to this scattering length at leading order in chiral perturbation\ntheory. We further demonstrate that these corrections can explain the bulk of\nthe discrepancy between the recent experimental data on pionic hydrogen and\npionic deuterium. We also give the first determination of the electromagnetic\nlow-energy constant f1.",
    "arxiv_id": "nucl-th/0512035",
    "authors": [
      "Ulf-G. Mei\u00dfner",
      "Udit Raha",
      "Akaki Rusetsky"
    ],
    "categories": [
      "nucl-th",
      "hep-ph",
      "nucl-ex"
    ],
    "doi": "10.1016/j.physletb.2006.07.001",
    "journal_ref": "Phys.Lett.B639:478-482,2006",
    "title": "Isospin-breaking corrections in the pion-deuteron scattering length",
    "url": "https://arxiv.org/abs/nucl-th/0512035"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "26e66aac-67d2-4393-8216-16ea2a3a5ba0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}