dorsal/arxiv
View SchemaImpact-Parameter Dependence of Multiple Lepton-pair Production from Electromagnetic Fields
| Authors | M. C. Guclu, J. C. Wells, A. S. Umar, M. R. Strayer, D. J. Ernst |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9410044 |
| URL | https://arxiv.org/abs/nucl-th/9410044 |
| DOI | 10.1103/PhysRevA.51.1836 |
| Journal | Phys.Rev.A51:1836-1844,1995 |
Abstract
In relativistic heavy-ion collisions, the strong Lorentz-contracted electromagnetic fields are capable of producing copious numbers of lepton pairs through the two-photon mechanism. Monte Carlo techniques have been developed that allow the exact calculation of production by this mechanism when a semi-classical approximation is made to the motion of the two ions. Here, we develop a hybrid Monte Carlo technique that enables us to calculate the impact parameter dependence of the two-photon mechanism for lepton-pair production, and by using this result, we obtain the probability distribution for multiple-pair production as a function of impact parameter. Computations are performed for S$+$Au and Pb$+$Pb systems at 200 A GeV and 160 A GeV, respectively. We also compare our results with the equivalent photon approximation and elucidate the differences.
{
"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
}