{
  "annotation_id": "29f9724e-75ec-4178-957b-adc6f9d35139",
  "date_created": "2026-03-02T18:00:11.993000Z",
  "date_modified": "2026-03-02T18:00:11.993000Z",
  "file_hash": "64437f0d193a4c19895ed5c8ca5397104c01cd1fa1e197f49eabb773ce3e8645",
  "private": false,
  "record": {
    "abstract": "We calculate elementary proton-proton and neutron-proton bremsstrahlung and\ntheir contribution to the $e^+e^-$ invariant mass distribution. At 4.9 GeV, the\nproton-proton contribution is larger than neutron-proton, but it is small\ncompared to recent data. We then make a first calculation of bremsstrahlung in\nnucleon-nucleon reactions with multi-hadron final states. Again at 4.9 GeV, the\nmany-body bremsstrahlung is larger than simple nucleon-nucleon bremsstrahlung\nby more than an order of magnitude in the low-mass region. When the\nbremsstrahlung contributions are summed with Dalitz decay of the $\\eta$,\nradiative decay of the $\\Delta$ and from two-pion annihilation, the result\nmatches recent high statistics proton-proton data from the Dilepton\nSpectrometer collaboration.",
    "arxiv_id": "nucl-th/9306004",
    "authors": [
      "Kevin Haglin",
      "Charles Gale"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1103/PhysRevC.49.401",
    "journal_ref": "Phys.Rev.C49:401-410,1994",
    "title": "Dilepton Production in Nucleon-Nucleon Reactions With and Without   Hadronic Inelasticities",
    "url": "https://arxiv.org/abs/nucl-th/9306004"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d2d574d4-2286-4dd9-895b-c5608834008d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}