{
  "annotation_id": "0e9b2769-b85f-4bfa-8986-3302fed8f134",
  "date_created": "2026-03-02T18:00:10.877000Z",
  "date_modified": "2026-03-02T18:00:10.877000Z",
  "file_hash": "c02c732f4f82da270d95e82e3602c4f4e26f302bc55c97d6e5174fe8c80661c6",
  "private": false,
  "record": {
    "abstract": "Starting from the microscopic low-momentum nucleon-nucleon interaction V{low\nk}, we present the first systematic shell model study of magnetic moments and\nmagnetic dipole transition strengths of the basic low-energy one-quadrupole\nphonon excitations in nearly-spherical nuclei. Studying in particular the\neven-even N=52 isotones from 92Zr to 100Cd, we find the predicted evolution of\nthe predominantly proton-neutron non-symmetric state reveals a restoration of\ncollective proton-neutron mixed-symmetry structure near mid-shell. This\nprovides the first explanation for the existence of pronounced collective\nmixed-symmetry structures in weakly-collective nuclei.",
    "arxiv_id": "nucl-th/0612070",
    "authors": [
      "J. D. Holt",
      "N. Pietralla",
      "J. W. Holt",
      "T. T. S. Kuo",
      "G. Rainovski"
    ],
    "categories": [
      "nucl-th",
      "nucl-ex"
    ],
    "doi": "10.1103/PhysRevC.76.034325",
    "journal_ref": "Phys.Rev.C76:034325,2007",
    "title": "Microscopic Restoration of Proton-Neutron Mixed Symmetry in Weakly   Collective Nuclei",
    "url": "https://arxiv.org/abs/nucl-th/0612070"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1463ee38-e330-401a-aa72-daeb3ee7389f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}