{
  "annotation_id": "b0f12bb5-8ac3-4a1d-a750-e22c64fd78d7",
  "date_created": "2026-03-02T18:00:18.515000Z",
  "date_modified": "2026-03-02T18:00:18.515000Z",
  "file_hash": "b3b8e87e70326303638e8ae70a2d6a4e28fdcaefa669c8d6be0f2e60fe14800d",
  "private": false,
  "record": {
    "abstract": "The electromagnetic N-$\\Delta$ transition form factors are calculated in the\nframework of a formally covariant constituent diquark model. As a spin-3/2\nparticle the $\\Delta$ is assumed to be a bound state of a quark and an\naxial-vector diquark. The wave function is obtained from a diquark-quark\nSalpeter equation with an instantaneous quark exchange potential. The three\ntransition form factors are calculated for momentum transfers squared from the\npseudothreshold $(M_\\Delta-M_N)^2$ up to $-2 (GeV/c)^2$. The magnetic form\nfactor is in qualitative agreement with experiment. We find very interesting\nresults for the ratios E2/M1 and C2/M1.",
    "arxiv_id": "nucl-th/9610014",
    "authors": [
      "Volker Keiner"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1007/s002180050371",
    "journal_ref": "Z.Phys.A359:91-97,1997",
    "title": "Electromagnetic N-$\\Delta$ transition form factors in a covariant   quark-diquark model",
    "url": "https://arxiv.org/abs/nucl-th/9610014"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bca085f5-1e62-43db-977e-07217581767c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}