{
  "annotation_id": "a8cb3299-8dd4-441a-9d03-1a54945123f7",
  "date_created": "2026-03-02T18:00:14.637000Z",
  "date_modified": "2026-03-02T18:00:14.637000Z",
  "file_hash": "1bd5f180864d77944e7002258ba53e00ae6a59108af5e5026ed1ec1fb9617164",
  "private": false,
  "record": {
    "abstract": "Scalar and vector interactions, with the scalar interaction coupled to a\ncomposite spin-1/2 system so as to cause a shift of its mass, are shown to obey\na low-energy theorem which guarantees that the second order interaction due to\nz-graphs is the same as for a point Dirac particle. Off-shell and contact\ninteractions appropriate to the composite system cancel and this is verified in\na model of a composite fermion. The result provides a justification for the use\nof the Dirac equation as it has been in relativistic nuclear scattering and\nmean field theories.",
    "arxiv_id": "nucl-th/9407040",
    "authors": [
      "S. J. Wallace",
      "Franz Gross",
      "J. A. Tjon"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevLett.74.228",
    "journal_ref": "Phys.Rev.Lett.74:228-230,1995",
    "title": "Low energy theorem for scalar and vector interactions of a composite   spin-1/2 system",
    "url": "https://arxiv.org/abs/nucl-th/9407040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b54cee93-7325-423b-b17d-800b410e9ad9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}