{
  "annotation_id": "aec411f7-07fa-4ffd-9ef1-bf1eb5ad9694",
  "date_created": "2026-03-02T18:00:22.154000Z",
  "date_modified": "2026-03-02T18:00:22.154000Z",
  "file_hash": "fb6a475a02f247f3846f5cbbfce02bc61abfa37236d8c0a6ef88ebe48dd275b8",
  "private": false,
  "record": {
    "abstract": "We investigate a description of shape-mixing and shape-transitions using\ncollective coordinates. To that end we apply a theory of adiabatic\nlarge-amplitude motion to a simplified nuclear shell-model, where the\napproximate results can be contrasted with exact diagonalisations. We find\nexcellent agreement for different regimes, and contrast the results with those\nfrom a more standard calculation using a quadrupole constraint. We show that\nthe method employed in this work selects diabatic (crossing) potential energy\ncurves where these are appropriate, and discuss the implications for a\nmicroscopic study of shape coexistence.",
    "arxiv_id": "nucl-th/9807078",
    "authors": [
      "Takashi Nakatsukasa",
      "Niels R. Walet"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.58.3397",
    "journal_ref": "Phys.Rev.C58:3397-3406,1998",
    "title": "Collective coordinates, shape transitions and shape coexistence: a   microscopic approach",
    "url": "https://arxiv.org/abs/nucl-th/9807078"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dfa06d8e-690b-46ca-a867-320aa554cde7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}