{
  "annotation_id": "938510c8-a8be-4168-b2fa-3ce14cde3c67",
  "date_created": "2026-03-02T18:00:25.866000Z",
  "date_modified": "2026-03-02T18:00:25.866000Z",
  "file_hash": "8b6ef4d453b97b42fa05e785c887f909be8b9c470b3522b0da3fc3667d9d5461",
  "private": false,
  "record": {
    "abstract": "Charge-independence breaking due to the pion-mass difference in the (chiral)\ntwo-pion-exchange nucleon-nucleon force is investigated. A general argument\nbased on symmetries is presented that relates the charge-symmetric part of that\nforce to the proton-proton case. The static potential linear in that mass\ndifference is worked out as an explicit example by means of Feynman diagrams,\nand this confirms the general argument.",
    "arxiv_id": "nucl-th/9906048",
    "authors": [
      "J. L. Friar",
      "U. van Kolck"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.60.034006",
    "journal_ref": "Phys.Rev.C60:034006,1999",
    "title": "Charge-Independence Breaking in the Two-Pion-Exchange Nucleon-Nucleon   Force",
    "url": "https://arxiv.org/abs/nucl-th/9906048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c93e2af3-ad36-4280-9ee5-e63410f52d80",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}