{
  "annotation_id": "4a982e5c-0de9-4761-9670-82bb1c3a5f93",
  "date_created": "2026-03-02T18:00:22.299000Z",
  "date_modified": "2026-03-02T18:00:22.299000Z",
  "file_hash": "7f827d05da65ad3a91b507c1042c566e31508314c814b5afc092db898f2bc601",
  "private": false,
  "record": {
    "abstract": "The short range repulsion between nucleons is treated by a unitary\ncorrelation operator which shifts the nucleons away from each other whenever\ntheir uncorrelated positions are within the replusive core. By formulating the\ncorrelation as a transformation of the relative distance between particle\npairs, general analytic expressions for the correlated wave functions and\ncorrelated operators are given. The decomposition of correlated operators into\nirreducible n-body operators is discussed. The one- and two-body-irreducible\nparts are worked out explicitly and the contribution of three-body correlations\nis estimated to check convergence. Ground state energies of nuclei up to mass\nnumber A=48 are calculated with a spin-isospin-dependent potential and single\nSlater determinants as uncorrelated states. They show that the deduced energy-\nand mass-number-independent correlated two-body Hamiltonian reproduces all\n\"exact\" many-body calculations surprisingly well.",
    "arxiv_id": "nucl-th/9709038",
    "authors": [
      "H. Feldmeier",
      "T. Neff",
      "R. Roth",
      "J. Schnack"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/S0375-9474(97)00805-1",
    "journal_ref": "Nucl.Phys. A632 (1998) 61-95",
    "title": "A unitary correlation operator method",
    "url": "https://arxiv.org/abs/nucl-th/9709038"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "78d60c01-0345-45b9-bcbd-031dbbd408d8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}