{
  "annotation_id": "8ead3774-375c-478f-b00a-c06b1d749b7b",
  "date_created": "2026-03-02T18:00:22.217000Z",
  "date_modified": "2026-03-02T18:00:22.217000Z",
  "file_hash": "70dd9761acaaf59b81ac258cc90905a2e61830c1a69b5cd242f404a186b7e0d6",
  "private": false,
  "record": {
    "abstract": "The charge-current density and two-photon operators consistent with a\nsingle-particle semi-relativistic Hamiltonian are derived within a suitable\nfunctional derivative formalism which preserves gauge invariance. An\napplication to electron scattering is presented and results are compared with a\nfully relativistic case and the non-relativistic cases corrected through fourth\norder in M^{-1}.",
    "arxiv_id": "nucl-th/9801066",
    "authors": [
      "S. Boffi",
      "F. Capuzzi",
      "P. Demetriou",
      "M. Radici"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/S0375-9474(98)80005-5",
    "journal_ref": "Nucl.Phys. A637 (1998) 585-600",
    "title": "Semi-relativistic charge-current density operator",
    "url": "https://arxiv.org/abs/nucl-th/9801066"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6169c868-f498-4a2a-bb52-0967bde7d8ed",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}