{
  "annotation_id": "7c00c642-e6fd-4d69-9454-e0cdb90aea99",
  "date_created": "2026-03-02T18:00:15.487000Z",
  "date_modified": "2026-03-02T18:00:15.487000Z",
  "file_hash": "d5d3e688fa111acefc059b7515ba5ac13d265f2d8b8b13ce824a5601c0396f44",
  "private": false,
  "record": {
    "abstract": "The proton-proton bremsstrahlung is investigated within a coupled-channel\nmodel with the $\\Delta$ degree of freedom. The model is consistent with the\n$NN$ scattering up to 1 GeV and the $\\gamma N\\Delta$ vertex determined in the\nstudy of pion photoproduction reactions. It is found that the $\\Delta$\nexcitation can significantly improve the agreements with the $pp \\rightarrow\npp\\gamma$ at $E_{lab}=280$ MeV. Predictions at $E_{lab}=550$ and $800$ MeV are\npresented for future experimental tests.",
    "arxiv_id": "nucl-th/9412013",
    "authors": [
      "F. de Jong",
      "K. Nakayama",
      "T. -S. H. Lee"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.51.2334",
    "journal_ref": "Phys.Rev.C51:2334-2346,1995",
    "title": "Proton-proton bremsstrahlung below and above pion-threshold: the   influence of the $\\Delta$-isobar",
    "url": "https://arxiv.org/abs/nucl-th/9412013"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "646e671c-2d2e-42f2-8b41-3c63697bbe8b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}