{
  "annotation_id": "0015e488-e660-4d2e-b735-31868b0e2fdd",
  "date_created": "2026-03-02T18:00:18.273000Z",
  "date_modified": "2026-03-02T18:00:18.273000Z",
  "file_hash": "c8f3e6428e5f18d7c211e80d3db73bd8da0b0c13832c097e3977413a0ef02faa",
  "private": false,
  "record": {
    "abstract": "We use the method of QCD sum rules in the presence of an external pion field\nto investigate isospin symmetry breakings in pion-nucleon couplings. Possible\nmanifestations of such isospin symmetry breaking are examined in the context of\nlow-energy nucleon-nucleon ($NN$) scattering. We discuss numerical results in\nrelation to both the existing data and other theoretical predictions.",
    "arxiv_id": "nucl-th/9610025",
    "authors": [
      "W-Y. P. Hwang",
      "Ze-sen Yang",
      "Y. S. Zhong",
      "Z. N. Zhou",
      "Shi-lin Zhu"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.57.61",
    "journal_ref": "Phys.Rev.C57:61-68,1998",
    "title": "QCD Sum Rules: Isospin Symmetry Breakings in Pion-Nucleon Couplings",
    "url": "https://arxiv.org/abs/nucl-th/9610025"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9ee750f9-5438-4c5c-ab6d-543eb3bd302b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}