{
  "annotation_id": "c19b903a-bcc8-4b2f-b194-238c113715be",
  "date_created": "2026-03-02T18:00:18.713000Z",
  "date_modified": "2026-03-02T18:00:18.713000Z",
  "file_hash": "0648ec7aa55d7ff4524075595ba63374879c40953c3694eb1abb240c4f740fd7",
  "private": false,
  "record": {
    "abstract": "We develop a formally covariant quark-diquark model of the nucleon. The\nnucleon is treated as a bound state of a constituent quark and a diquark\ninteracting via a quark exchange. We include both scalar and axial-vector\ndiquarks. The underlying Bethe-Salpeter equation is transformed into a pair of\ncoupled Salpeter equations. The space- and timelike electromagnetic form\nfactors of the nucleon are calculated in the Mandelstam formalism for squared\nmomentum transfers up to 3 (GeV/c)^2 above threshold. The model is applied also\nto the Delta(3/2).",
    "arxiv_id": "nucl-th/9612018",
    "authors": [
      "Volker Keiner"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "title": "Nucleon and Delta in a covariant quark-diquark model",
    "url": "https://arxiv.org/abs/nucl-th/9612018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a20cd378-c01d-4a40-8627-8dd257722daf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}