{
  "annotation_id": "34c7df9b-6b1a-4279-bf8d-c60ec5a6db3b",
  "date_created": "2026-03-02T18:00:00.542000Z",
  "date_modified": "2026-03-02T18:00:00.542000Z",
  "file_hash": "7fdd8ab1af60982e1c012bfc2260178b3cf27f613923261f90b5859c5c3c5501",
  "private": false,
  "record": {
    "abstract": "The $\\alpha $-particle production in the dissociation of $^{9}$Be on\n$^{209}$Bi and $^{64}$Zn at energies just above the Coulomb barrier is studied\nwithin the two-center shell model approach. The dissociation of $^{9}$Be on\n$^{209}$Bi is caused by a molecular single-particle effect (Landau-Zener\nmechanism) before the nuclei reach the Coulomb barrier. Molecular\nsingle-particle effects do not occur at that stage of the collision for\n$^{9}$Be+$^{64}$Zn, and this explains the absence of fusion suppression\nobserved for this system. The polarisation of the energy level of the last\nneutron of $^{9}$Be and, therefore the existence of avoided crossings with that\nlevel, depends on the structure of the target.",
    "arxiv_id": "nucl-th/0408036",
    "authors": [
      "A. Diaz-Torres",
      "I. J. Thompson",
      "W. Scheid"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/S0370-2693(02)01676-3",
    "journal_ref": "Phys.Lett. B533 (2002) 265-270",
    "title": "Alpha particle production by molecular single-particle effect in   reactions of $^{9}$Be just above the Coulomb barrier",
    "url": "https://arxiv.org/abs/nucl-th/0408036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "70a7fb27-1b29-4d0c-9ffc-f1641f3d29c8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}