{
  "annotation_id": "3b7c2b5c-b6bb-4999-9aa1-6955cc101e9b",
  "date_created": "2026-03-02T18:00:21.504000Z",
  "date_modified": "2026-03-02T18:00:21.504000Z",
  "file_hash": "12edcbff489510746c942e17d20f48aca660c4bcbca08763ddd5077d0156eaad",
  "private": false,
  "record": {
    "abstract": "The cross section for the proton weak capture reaction $^1H(p,e^+\\nu_e)^2H$\nis calculated with wave functions obtained from a number of modern, realistic\nhigh-precision interactions. To minimize the uncertainty in the axial two-body\ncurrent operator, its matrix element has been adjusted to reproduce the\nmeasured Gamow-Teller matrix element of tritium $\\beta$ decay in model\ncalculations using trinucleon wave functions from these interactions. A\nthorough analysis of the ambiguities that this procedure introduces in\nevaluating the two-body current contribution to the pp capture is given. Its\ninherent model dependence is in fact found to be very weak. The overlap\nintegral $\\Lambda^2(E=0)$ for the pp capture is predicted to be in the range\n7.05--7.06, including the axial two-body current contribution, for all\ninteractions considered.",
    "arxiv_id": "nucl-th/9808010",
    "authors": [
      "R. Schiavilla",
      "V. G. J. Stoks",
      "W. Gloeckle",
      "H. Kamada",
      "A. Nogga",
      "J. Carlson",
      "R. Machleidt",
      "V. R. Pandharipande",
      "R. B. Wiringa",
      "A. Kievsky",
      "S. Rosati",
      "M. Viviani"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.58.1263",
    "journal_ref": "Phys.Rev.C58:1263,1998",
    "title": "Weak capture of protons by protons",
    "url": "https://arxiv.org/abs/nucl-th/9808010"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b3075b9e-466f-4a31-b907-77ad6e1effce",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}