{
  "annotation_id": "34eb4f56-0dc1-4100-96d6-0f0cd7d20e1e",
  "date_created": "2026-03-02T18:00:04.663000Z",
  "date_modified": "2026-03-02T18:00:04.663000Z",
  "file_hash": "f2965ee407ccbe92c34ce6a9a79250ca015ad49d5e1839ed81cb0c08a3746dc5",
  "private": false,
  "record": {
    "abstract": "The light weakly-bound nucleus $^7$Li is studied within a dicluster\n$\\alpha+t$ picture. Different observables obtained within our simple model are\ncompared with previous calculations and experiments showing good agreement. In\nparticular we calculate dipole and quadrupole electromagnetic response to the\ncontinuum. The energy distribution of B(E$\\lambda$) values are consistent with\nthe energy weighted molecular sum rule and display a sizable contribution of\nnon-resonant character arising from the weak binding property. The\ncorresponding form factors for excitations to the continuum are used in a\nsemiclassical coupled channel scheme to get estimates for the break-up cross\nsection in a heavy ion reaction. The nuclear contribution is found to play an\nimportant role in the process for bombarding energies around the Coulomb\nbarrier. The masses and charges ratios of the two clusters are shown to lead to\nfeatures of the cluster halo that may significantly differ from the one usually\nassociated with one-nucleon haloes.",
    "arxiv_id": "nucl-th/0507030",
    "authors": [
      "Lorenzo Fortunato",
      "Andrea Vitturi"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1140/epja/i2005-10118-y",
    "journal_ref": "Eur.Phys.J. A26 (2005) 33-40",
    "title": "Electromagnetic response and break-up of light weakly-bound nuclei in a   dicluster model",
    "url": "https://arxiv.org/abs/nucl-th/0507030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e84c712c-5a58-411a-b40c-882fe49f8ae0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}