{
  "annotation_id": "b030e551-e0cd-4a11-a092-0aadade625d1",
  "date_created": "2026-03-02T18:00:11.609000Z",
  "date_modified": "2026-03-02T18:00:11.609000Z",
  "file_hash": "591faed2b9164fb34e9cb196e600d85839b8bcfab5bf35e19b83984ab49bc6d2",
  "private": false,
  "record": {
    "abstract": "The $B$(E1;$1/2^+\\to1/2^-$) strength for $^{11}$Be has been extracted from\nintermediate energy Coulomb excitation measurements, over a range of beam\nenergies using a new reaction model, the extended continuum discretized coupled\nchannels (XCDCC) method. In addition, a measurement of the excitation cross\nsection for $^{11}$Be+$^{208}$Pb at 38.6 MeV/nucleon is reported. The $B$(E1)\nstrength of 0.105(12) e$^2$fm$^2$ derived from this measurement is consistent\nwith those made previously at 60 and 64 MeV/nucleon, i n contrast to an\nanomalously low result obtained at 43 MeV/nucleon. By coupling a\nmulti-configuration description of the projectile structure with realistic\nreaction theory, the XCDCC model provides for the first time a fully quantum\nmechanical description of Coulomb excitation. The XCDCC calculations reveal\nthat the excitation process involves significant contributions from nuclear,\ncontinuum, and higher-order effects. An analysis of the present and two earlier\nintermediate energy measurements yields a combined B(E1) strength of 0.105(7)\ne$^2$fm$^2$. This value is in good agreement with the value deduced\nindependently from the lifetime of the $1/2^-$ state in $^{11}$Be, and has a\ncomparable p recision.",
    "arxiv_id": "nucl-th/0703055",
    "authors": [
      "N. C. Summers",
      "S. D. Pain",
      "N. A. Orr",
      "W. N. Catford",
      "J. C. Angelique",
      "N. I. Ashwood",
      "V. Bouchat",
      "N. M. Clarke",
      "N. Curtis",
      "M. Freer",
      "B. R. Fulton",
      "F. Hanappe",
      "M. Labiche",
      "J. L. Lecouey",
      "R. C. Lemmon",
      "D. Mahboub",
      "A. Ninane",
      "G. Normand",
      "F. M. Nunes",
      "N. Soic",
      "L. Stuttge",
      "C. N. Timis",
      "I. J. Thompson",
      "J. S. Winfield",
      "V. Ziman"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/j.physletb.2007.05.003",
    "journal_ref": "Phys.Lett.B650:124-128,2007",
    "title": "B(E1) Strengths from Coulomb Excitation of 11Be",
    "url": "https://arxiv.org/abs/nucl-th/0703055"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8279f36a-95ac-4b9c-b4fa-85e493de2e40",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}