{
  "annotation_id": "21eb69e9-5d2f-48bd-8b85-14b7edecd554",
  "date_created": "2026-03-02T18:00:00.536000Z",
  "date_modified": "2026-03-02T18:00:00.536000Z",
  "file_hash": "11cdeed413bb0d9990a9bdf5c9a0fe15e4b4a8dd0bb51bbc6741e6f927a2ff1e",
  "private": false,
  "record": {
    "abstract": "We explore, within the framework of an algebraic sp(4) shell model, discrete\napproximations to various derivatives of the energies of the lowest\nisovector-paired 0^+ states of atomic nuclei in the 40 \u003cA \u003c 100 mass range. The\nresults show that the symplectic model can be used to successfully interpret\nfine structure effects driven by the proton-neutron (pn) and like-particle\nisovector pairing interactions as well as interactions with higher J\nmultipolarity. A finite energy difference technique is used to investigate\ntwo-proton and two-neutron separation energies, observed irregularities found\naround the N=Z region, and the like-particle and pn isovector pairing gaps. A\nprominent staggering behavior is observed between groups of even-even and\nodd-odd nuclides. An oscillation, in addition to that associated with changes\nin isospin values, that tracks with alternating seniority quantum numbers\nrelated to the isovector pairing interaction is also found.",
    "arxiv_id": "nucl-th/0407086",
    "authors": [
      "K. D. Sviratcheva",
      "A. I. Georgieva",
      "J. P. Draayer"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.69.024313",
    "journal_ref": "Phys.Rev.C69:024313,2004",
    "title": "Staggering behavior of 0^+ state energies in the Sp(4) pairing model",
    "url": "https://arxiv.org/abs/nucl-th/0407086"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c5172073-18b9-47ad-8cd2-d17cc57ea213",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}