{
  "annotation_id": "b0765da7-657d-4596-8494-284bb00365d8",
  "date_created": "2026-03-02T18:00:29.333000Z",
  "date_modified": "2026-03-02T18:00:29.333000Z",
  "file_hash": "1c3ad967b787c0c8ebf4851867cb5c2da404ad5b190c5f5c4a76ac92c0bbc30a",
  "private": false,
  "record": {
    "abstract": "We investigate the effect of different forms of relativistic spin coupling of\nconstituent quarks in the nucleon electromagnetic form factors. The\nfour-dimensional integrations in the two-loop Feynman diagram are reduced to\nthe null-plane, such that the light-front wave function is introduced in the\ncomputation of the form factors. The neutron charge form factor is very\nsensitive to different choices of spin coupling schemes, once its magnetic\nmoment is fitted to the experimental value. The scalar coupling between two\nquarks is preferred by the neutron data, when a reasonable fit of the proton\nmagnetic momentum is found.",
    "arxiv_id": "nucl-th/9911016",
    "authors": [
      "W. R. B. de Araujo",
      "E. F. Suisso",
      "T. Frederico",
      "M. Beyer",
      "H. J. Weber"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/S0370-2693(00)00238-0",
    "journal_ref": "Phys.Lett.B478:86-93,2000",
    "title": "Relativistic Quark Spin Coupling Effects in the Nucleon Electromagnetic   Form Factors",
    "url": "https://arxiv.org/abs/nucl-th/9911016"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dc8fce61-fb86-45f6-8063-8315000fb4ca",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}