{
  "annotation_id": "23096f44-cce3-4f9c-9738-d5ced89d0103",
  "date_created": "2026-03-02T18:00:21.985000Z",
  "date_modified": "2026-03-02T18:00:21.985000Z",
  "file_hash": "9edf41d878f0aa424ebd7653a21ca5e6227babb2afca5dc75dd6edf969385db4",
  "private": false,
  "record": {
    "abstract": "We discuss the effects of multi-phonon excitations on heavy-ion fusion\nreactions at energies near and below the Coulomb barrier, focusing especially\non the role of anharmonicities. We carry out a systematic study of those\neffects on the excitation function of the fusion cross section and on the\nfusion barrier distribution, by using the vibrational limit of the interacting\nboson model. We also analyze the recently measured high-precision data of the\n$^{16}$O + $^{148}$Sm fusion reaction with this model and discuss the\nanharmonic properties of the quadrupole as well as the octupole vibrations in\n$^{148}$Sm. Negative and positive static quadrupole moments are deduced for the\nfirst 2$^+$ and 3$^-$ states in $^{148}$Sm, respectively. It is shown that the\nfusion barrier distribution strongly depends on the sign of the quadrupole\nmoments, suggesting that subbarrier fusion reactions offer an alternative\nmethod to extract the static quadrupole moments of phonon states in spherical\nnuclei.",
    "arxiv_id": "nucl-th/9711008",
    "authors": [
      "K. Hagino",
      "S. Kuyucak",
      "N. Takigawa"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.57.1349",
    "journal_ref": "Phys.Rev.C57:1349-1360,1998",
    "title": "Excitation of nuclear anharmonic vibrations in heavy-ion fusion   reactions",
    "url": "https://arxiv.org/abs/nucl-th/9711008"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b94e6af3-00b2-4642-815c-5d875ef0d463",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}