{
  "annotation_id": "033b52ac-d855-46e3-8204-440223740825",
  "date_created": "2026-03-02T18:00:22.456000Z",
  "date_modified": "2026-03-02T18:00:22.456000Z",
  "file_hash": "49616fffd2766d063d363c7a69873ebaec74c0cff508b38272970a862e6b6838",
  "private": false,
  "record": {
    "abstract": "By introducing electromagnetic formfactors in the spacelike region we extend\nan effective, gauge invariant Lagrangian model considering Born terms, baryon\nresonances up to 1.7 GeV and vector meson contributions (Rho, Omega) to\ncalculate electroproduction of Pi-mesons. This model forms the basis for\npredictions of pion induced dilepton production on the nucleon. Therefore, the\nimplemented formfactors are constructed in such a way that their analytic\ncontinuation into the timelike region is possible. It is shown that the seagull\nterm and the N*(1520) resonance play a dominant role in the dilepton\nproduction.",
    "arxiv_id": "nucl-th/9802010",
    "authors": [
      "Gregor Penner",
      "Thomas Feuster",
      "Ulrich Mosel"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Pion Electroproduction and Pion-induced Dileptonproduction on the   Nucleon",
    "url": "https://arxiv.org/abs/nucl-th/9802010"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "27faa09a-4ae3-4b62-97ac-864032ce33e0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}