{
  "annotation_id": "7a8b4a02-6dda-4321-9376-2ca68827623a",
  "date_created": "2026-03-02T18:00:29.263000Z",
  "date_modified": "2026-03-02T18:00:29.263000Z",
  "file_hash": "65cb73a74ca238cc5fa1b1e5a2a4c9533541f0129276f426b290f5e1a053fdca",
  "private": false,
  "record": {
    "abstract": "A covariant, composite scalar diquark, Fadde\u0027ev amplitude model for the\nnucleon is used to calculate pseudoscalar, isoscalar- and isovector-vector,\naxial-vector and scalar nucleon form factors. The last yields the nucleon\nsigma-term and on-shell sigma-nucleon coupling. The calculated form factors are\nsoft, and the couplings are generally in good agreement with experiment and\nother determinations. Elements in the dressed-quark-axial-vector vertex that\nare not constrained by the Ward-Takahashi identity contribute ~20% to the\nmagnitude of g_A. The calculation of the nucleon sigma-term elucidates the only\nunambiguous means of extrapolating meson-nucleon couplings off the meson\nmass-shell.",
    "arxiv_id": "nucl-th/9911068",
    "authors": [
      "J. C. R. Bloch",
      "C. D. Roberts",
      "S. M. Schmidt"
    ],
    "categories": [
      "nucl-th",
      "hep-lat",
      "hep-ph",
      "nucl-ex"
    ],
    "doi": "10.1103/PhysRevC.61.065207",
    "journal_ref": "Phys.Rev.C61:065207,2000",
    "title": "Selected nucleon form factors and a composite scalar diquark",
    "url": "https://arxiv.org/abs/nucl-th/9911068"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a982a221-3537-4614-85c0-0da32deb9319",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}