{
  "annotation_id": "1f9c69be-6500-4c5b-9c7d-70459f3d3576",
  "date_created": "2026-03-02T18:00:04.990000Z",
  "date_modified": "2026-03-02T18:00:04.990000Z",
  "file_hash": "f613ae5a764d60824c51d450c43c6f23232fe0a6b5bfbc6d4c66f34d472ae22c",
  "private": false,
  "record": {
    "abstract": "We implement an effective operator formalism for general one- and two-body\noperators, obtaining results consistent with the no-core shell model (NCSM)\nwave functions. The Argonne V8\u0027 nucleon-nucleon potential was used in order to\nobtain realistic wave functions for 4He, 6Li and 12C. In the NCSM formalism, we\ncompute electromagnetic properties using the two-body cluster approximation for\nthe effective operators and obtain results which are sensitive to the range of\nthe bare operator. To illuminate the dependence on the range, we employ a\nGaussian two-body operator of variable range, finding weak renormalization of\nlong range operators (e.g., quadrupole) in a fixed model space. This is\nunderstood in terms of the two-body cluster approximation which accounts mainly\nfor short-range correlations. Consequently, short range operators, such as the\nrelative kinetic energy, will be well renormalized in the two-body cluster\napproximation.",
    "arxiv_id": "nucl-th/0412004",
    "authors": [
      "Ionel Stetcu",
      "Bruce R. Barrett",
      "Petr Navratil",
      "James P. Vary"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.71.044325",
    "journal_ref": "Phys.Rev. C71 (2005) 044325",
    "title": "Effective operators within the ab initio no-core shell model",
    "url": "https://arxiv.org/abs/nucl-th/0412004"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8e9f9d1f-8fad-44ec-a9b6-6bd87d6de461",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}