{
  "annotation_id": "6c90d825-0c46-4c76-90e8-414e17be5b81",
  "date_created": "2026-03-02T18:00:01.080000Z",
  "date_modified": "2026-03-02T18:00:01.080000Z",
  "file_hash": "7297e1058c4e163930b961d0ef67d96dbb274c2ba62508d4331dceec2ed7d1c5",
  "private": false,
  "record": {
    "abstract": "We propose a scheme for extracting an effective three-body interaction\noriginating from a two-nucleon interaction. This is based on the Q-box method\nof Kuo and collaborators, where folded diagrams are obtained by differentiating\na sum of non-folded diagrams with respect to the starting energy. To gain\ninsight we have studied several examples using the Lipkin model where the\nperturbative approach can be compared with exact results. Numerically the\nthree-body interactions can be significant and in a matrix example good\naccuracy was not obtained simultaneously for both eigenvalues with two-body\ninteractions alone.",
    "arxiv_id": "nucl-th/0411027",
    "authors": [
      "P. J. Ellis",
      "T. Engeland",
      "M. Hjorth-Jensen",
      "M. P. Kartamyshev",
      "E. Osnes"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.71.034301",
    "journal_ref": "Phys.Rev. C71 (2005) 034301",
    "title": "Model Calculation of Effective Three-Body Forces",
    "url": "https://arxiv.org/abs/nucl-th/0411027"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d83df607-8c90-49c6-99c9-158f2b75400f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}