{
  "annotation_id": "7c7c99cc-6dac-4c29-a2bf-2f42f75ef73c",
  "date_created": "2026-03-02T18:00:01.190000Z",
  "date_modified": "2026-03-02T18:00:01.190000Z",
  "file_hash": "9a7aac5ea8d808e68a4bc3dbb6b580e7352fcf0498fccbdf16ede971baa75333",
  "private": false,
  "record": {
    "abstract": "We analyze the spin-orbit coupling term in the nuclear energy density\nfunctional in terms of a zero-range NN-contact interaction and finite-range\ncontributions from two-pion exchange. We show that the strength of the\nspin-orbit contact interaction as extracted from high-precision nucleon-nucleon\npotentials is in perfect agreement with that of phenomenological Skyrme forces\nemployed in non-relativistic nuclear structure calculations. Additional\nlong-range contributions from chiral two-pion exchange turn out to be\nrelatively small. These explicitly density-dependent contributions reduce the\nratio of the isovector to the isoscalar spin-orbit strength significantly below\nthe Skyrme value 1/3. We perform a similar analysis for the strength function\nof the $(\\vec \\nabla \\rho)^2$-term and find values not far from those of\nphenomenological Skyrme parameterizations.",
    "arxiv_id": "nucl-th/0407116",
    "authors": [
      "N. Kaiser"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.70.034307",
    "journal_ref": "Phys.Rev. C70 (2004) 034307",
    "title": "Spin-orbit coupling in nuclei and realistic nucleon-nucleon potentials",
    "url": "https://arxiv.org/abs/nucl-th/0407116"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "962586f9-bf62-4050-ab01-a20580279cc8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}