{
  "annotation_id": "f9fbdd78-1049-4f22-acb5-78cbaab5dae8",
  "date_created": "2026-03-02T18:00:18.418000Z",
  "date_modified": "2026-03-02T18:00:18.418000Z",
  "file_hash": "a742ca42911285b5277f21b5720bd11aa133bd299aebf14086f278ba1641126a",
  "private": false,
  "record": {
    "abstract": "We study 4$\\alpha$ linear-chain states in 16O in comparison with 3$\\alpha$\nstates in 12C by using the Generator Coordinate Method within a microscopic\n$N\\alpha$-cluster model. It is shown to be very important to solve relative\nmotion of $\\alpha$-clusters by taking into account the orthogonality between\nthe linear-chain states and other low-lying states including the ground state.\nFor 12C, the 3$\\alpha$ chain state disappears because of this orthogonality.\nThe $4\\alpha$ chain state in 16O, on the other hand, is hardly affected by\nlow-lying states and persists to remain above the 4$\\alpha$ threshold. The\ncalculated moment of inertia of the $4\\alpha$ linear-chain rotational band (88\nkeV) reproduces the experimentally suggested value qualitatively.",
    "arxiv_id": "nucl-th/9606056",
    "authors": [
      "Naoyuki Itagaki",
      "Akira Ohnishi",
      "Kiyoshi Kato"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Four-Alpha Linear-Chain States in 16O",
    "url": "https://arxiv.org/abs/nucl-th/9606056"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e6b5e695-0bb7-4591-8179-6b45c644b30f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}