{
  "annotation_id": "1c25a46b-aaa3-4bc2-b859-f8e573dea777",
  "date_created": "2026-03-02T18:00:15.365000Z",
  "date_modified": "2026-03-02T18:00:15.365000Z",
  "file_hash": "d9e2b3822a4dce4ce245141bbe2a8eec84e77a2778021610d810ed3b7a2a55b6",
  "private": false,
  "record": {
    "abstract": "The E2 cross section calculated by Langanke and Shoppa for the Riken\nexperiment on the Coulomb Dissociation of 8B uses E2 nuclear matrix elements\nfrom one specific model. Other nuclear models predict a considerably smaller E2\ncross section (by a pproximately a factor of 3 to 4), and Langanke and Shoppa\nappear to assume the most optimistic scenario predicting large E2 cross\nsection. We also note that Barker has already criticised the nuclear model used\nby Langanke and Shoppa. A MODEL INDEPENDENT Chi-Square analysis of the Riken\ndata, suggest the best fit for the current Riken data is obtained with E1\namplitudes only. The upper limit (90% confidence) on the E2 component derived\nfrom our Chi-Square analysis is considerably smaller than used by Langanke and\nShoppa. The MODEL DEPENDENT analysis of Langanke-Shoppa should not be\nconsidered as a correction to the Riken result, as claimed, and their quoted\nS17(0) is not substantiated.",
    "arxiv_id": "nucl-th/9405023",
    "authors": [
      "Moshe Gai",
      "Carlos Bertulani"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.52.1706",
    "journal_ref": "Phys.Rev.C52:1706-1708,1995",
    "title": "Comment on E2 Contribution to the 8B ---\u003e p + 7Be Coulomb Dissociation   Cross Section [K. Langanke and T.D. Shoppa, Phys. Rev. C49(1994)R1771,   ER(1994)]",
    "url": "https://arxiv.org/abs/nucl-th/9405023"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "73211e56-ffe6-4d19-bfdf-b286e9620a87",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}