{
  "annotation_id": "78d9db27-ca83-43ec-86be-97e2c74f8196",
  "date_created": "2026-03-02T18:00:24.935000Z",
  "date_modified": "2026-03-02T18:00:24.935000Z",
  "file_hash": "4614b355c39dbecc3246e3232e918819b1111b69910778cae9bbd8ee8f3a005c",
  "private": false,
  "record": {
    "abstract": "Generalized nucleon polarizabilities for virtual photons can be defined in\nterms of electroproduction cross sections as function of the 4-momentum\ntransfer $Q^2$. In particular, the sum of the generalized electric and magnetic\npolarizabilities $\\Sigma=\\alpha+\\beta$ and the spin polarizability $\\gamma$ can\nbe expressed by virtual photon absorption cross sections integrated over the\nexcitation energy. These quantities have been calculated within the framework\nof the recently developed unitary isobar model for pion photo- and\nelectroproduction on the proton, which describes the available experimental\ndata up to an excitation energy of about 1 GeV. Our results have been compared\nto the predictions of chiral perturbation theory.",
    "arxiv_id": "nucl-th/9907056",
    "authors": [
      "D. Drechsel",
      "S. S. Kamalov",
      "G. Krein",
      "B. Pasquini",
      "L. Tiator"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/S0375-9474(99)00359-0",
    "journal_ref": "Nucl.Phys. A660 (1999) 57-68",
    "title": "Generalized polarizabilities and electroexcitation of the nucleon",
    "url": "https://arxiv.org/abs/nucl-th/9907056"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "eb297ece-a6de-41fc-b751-0cff8db76b36",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}