{
  "annotation_id": "68efe060-b8f5-45d5-8709-eac0a23ef51d",
  "date_created": "2026-03-02T18:00:18.802000Z",
  "date_modified": "2026-03-02T18:00:18.802000Z",
  "file_hash": "7beb5a5181dc7646aa355fa9a9c2e18cdd09ae098fc18fb82fb81828a4a7416c",
  "private": false,
  "record": {
    "abstract": "Equal-time Green\u0027s function is used to derive a three-dimensional integral\nequation from the Bethe-Salpeter equation. The resultant equation, in the\nabsence of anti-particles, is identical to the use of time-ordered diagrams,\nand has been used within the framework of $\\phi^2\\sigma$ coupling to study the\nrole of energy dependence and non-locality when the two-body potential is the\nsum of $\\sigma$-exchange and crossed $\\sigma$ exchange. The results show that\nnon-locality and energy dependence make a substantial contribution to both the\non-shell and off-shell amplitudes.",
    "arxiv_id": "nucl-th/9708037",
    "authors": [
      "A. D. Lahiff",
      "I. R. Afnan"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.56.2387",
    "journal_ref": "Phys.Rev.C56:2387-2395,1997",
    "title": "Role of retardation in 3-D relativistic equations",
    "url": "https://arxiv.org/abs/nucl-th/9708037"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f7f81f61-193c-4070-bfe3-0611854a787f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}