{
  "annotation_id": "e6478d49-ed00-4f01-93ba-3459fd3e26d5",
  "date_created": "2026-03-02T18:00:14.764000Z",
  "date_modified": "2026-03-02T18:00:14.764000Z",
  "file_hash": "b367e0dbdeb447fa0f021d6d3bb9d0ad58d502f195194d56e8ed8e6a7cd8c686",
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  "record": {
    "abstract": "A full calculation of lepton-pair angular characteristics is carried out for\n$e^+e^-$ pairs created in $pp$, $pn$ and $pd$ collisions at intermediate\nenergies. It is demonstrated that the proposed new observable, the dilepton\ndecay anisotropy, quite sensitively changes for different sources and may be\nuseful for their disentangling. The relevance of the dilepton decay anisotropy\nis shown in the context of a puzzling energy behavior for the ratio of the\nlepton yield from $pd$ to $pp$ reactions as observed at the BEVALAC.",
    "arxiv_id": "nucl-th/9508043",
    "authors": [
      "E. L. Bratkovskaya",
      "W. Cassing",
      "U. Mosel",
      "O. V. Teryaev",
      "A. I. Titov",
      "V. D. Toneev"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/0370-2693(95)01207-7",
    "journal_ref": "Phys.Lett. B362 (1995) 17-22",
    "title": "Decay Anisotropy of $e^+e^-$ Sources from $pN$ and $pd$ collisions",
    "url": "https://arxiv.org/abs/nucl-th/9508043"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "00662824-b86a-46f8-b614-b332dcf0f79b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}