{
  "annotation_id": "40666f85-dbd9-4a55-9b02-98cc19f05413",
  "date_created": "2026-03-02T18:00:01.371000Z",
  "date_modified": "2026-03-02T18:00:01.371000Z",
  "file_hash": "9b52302a0095ad73b08acb0c18658ba7648dc497fa796322274aa0feee281ed8",
  "private": false,
  "record": {
    "abstract": "The states with $J^\\pi=0^+$, $2^+$, and $4^+$ of $^{12}$C with excitation\nenergies less than about 15 MeV are investigated with the alpha condensate wave\nfunction with spatial deformation and by using the method of ACCC (analytic\ncontinuation in the coupling constant) which is necessary for a proper\ntreatment of resonance states. The calculated energy and width of the recently\nobserved $2_2^+$ state are found to be well reproduced. The obtained $2_2^+$\nwave function has a large overlap with a single condensate wave function of\n$3\\alpha$ gas-like structure. The density distribution is shown to be almost\nthe same as that of the $0_2^+$ state that is regarded as a $3\\alpha$\nBose-condensed state, if the energy of the $2_2^+$ state is scaled down to the\nsame value as the one of the $0_2^+$ state. Furthermore, the kinetic energy,\nnuclear interaction energy, and Coulomb interaction energy of the calculated\n$2_2^+$ state are shown to be very similar to those of the $0_2^+$ state. We\nconclude that the $2_2^+$ state has a structure similar to the $0_2^+$ state of\nBose-condensate character with a dilute $3\\alpha$ gas-like structure. In\naddition the resonance states, $0_3^+$, $0_4^+$, $4_2^+$, are also discussed.",
    "arxiv_id": "nucl-th/0410097",
    "authors": [
      "Y. Funaki",
      "A. Tohsaki",
      "H. Horiuchi",
      "P. Schuck",
      "G. Roepke"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1140/epja/i2004-10238-x",
    "journal_ref": "Eur.Phys.J. A24 (2005) 321-342",
    "title": "Resonance states in 12C and alpha-particle condensation",
    "url": "https://arxiv.org/abs/nucl-th/0410097"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0b360bdf-b07f-47fb-971e-b7930686dc56",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}