{
  "annotation_id": "c9e4ce94-4eda-4227-8e93-a1464c64be39",
  "date_created": "2026-03-02T18:00:22.106000Z",
  "date_modified": "2026-03-02T18:00:22.106000Z",
  "file_hash": "31713a9b9fe50e2440970d0f7deb0e2625acfe58cca7331680fafe3dbf68c1d8",
  "private": false,
  "record": {
    "abstract": "The R- and K-matrix parametrizations are analyzed and compared for the\nelastic alpha-alpha scattering at center-of-mass energies below 40 MeV. The two\nparametrizations differ in their definitions of the resonance energy which can\nlead to quite different results. The physical values of the best-fit parameters\nare compared with those computed for a potential model. The existence of a\nbroad resonance near 9 MeV is not supported by the data or by the potential\nmodel. We discuss the positive and negative aspects for both parametrizations.",
    "arxiv_id": "nucl-th/9806074",
    "authors": [
      "J. Humblet",
      "A. Csoto",
      "K. Langanke"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/S0375-9474(98)00419-9",
    "journal_ref": "Nucl.Phys. A638 (1998) 714-726",
    "title": "R-matrix and K-matrix analysis of elastic alpha-alpha scattering",
    "url": "https://arxiv.org/abs/nucl-th/9806074"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3e2c85d5-25b4-40a8-b14a-4e1136abdcfa",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}