{
  "annotation_id": "dce325e6-f316-4522-9f8b-65c19e206963",
  "date_created": "2026-03-02T18:00:19.117000Z",
  "date_modified": "2026-03-02T18:00:19.117000Z",
  "file_hash": "aff0c3246775022906c008b182fb121bbc1c6ba3185a818b8c8f38098773c68a",
  "private": false,
  "record": {
    "abstract": "We discuss the low-energy behavior of the spin-averaged amplitude of virtual\nCompton scattering (VCS) off a nucleon.\n  Based on gauge invariance, Lorentz invariance and the discrete symmetries, it\nis shown that to first order in the frequency of the final real photon only two\ngeneralized polarizabilities appear.\n  Different low-energy expansion schemes are discussed and put into\nperspective.",
    "arxiv_id": "nucl-th/9608061",
    "authors": [
      "D. Drechsel",
      "G. Knoechlein",
      "A. Metz",
      "S. Scherer"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1103/PhysRevC.55.424",
    "journal_ref": "Phys.Rev.C55:424-430,1997",
    "title": "Generalized polarizabilities and the spin-averaged amplitude in virtual   Compton scattering off the nucleon",
    "url": "https://arxiv.org/abs/nucl-th/9608061"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9a4f70f5-472a-4b1c-85ec-07571600802d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}