{
  "annotation_id": "c423cd38-bb61-4a6d-8e0b-ce0b67fb57f9",
  "date_created": "2026-03-02T18:00:15.197000Z",
  "date_modified": "2026-03-02T18:00:15.197000Z",
  "file_hash": "5108b30d710c531a71da01b5390f3022dcc317ab646fa7d0784c8993ff32b22b",
  "private": false,
  "record": {
    "abstract": "In relativistic heavy-ion collisions, the strong Lorentz-contracted\nelectromagnetic fields are capable of producing copious numbers of lepton pairs\nthrough the two-photon mechanism. Monte Carlo techniques have been developed\nthat allow the exact calculation of production by this mechanism when a\nsemi-classical approximation is made to the motion of the two ions. Here, we\ndevelop a hybrid Monte Carlo technique that enables us to calculate the impact\nparameter dependence of the two-photon mechanism for lepton-pair production,\nand by using this result, we obtain the probability distribution for\nmultiple-pair production as a function of impact parameter. Computations are\nperformed for S$+$Au and Pb$+$Pb systems at 200 A GeV and 160 A GeV,\nrespectively. We also compare our results with the equivalent photon\napproximation and elucidate the differences.",
    "arxiv_id": "nucl-th/9410044",
    "authors": [
      "M. C. Guclu",
      "J. C. Wells",
      "A. S. Umar",
      "M. R. Strayer",
      "D. J. Ernst"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevA.51.1836",
    "journal_ref": "Phys.Rev.A51:1836-1844,1995",
    "title": "Impact-Parameter Dependence of Multiple Lepton-pair Production from   Electromagnetic Fields",
    "url": "https://arxiv.org/abs/nucl-th/9410044"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "183538b4-bde1-4d7c-9580-59338d5b3bae",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}