dorsal/arxiv
View SchemaDilepton Enhancement by Thermal Pion Annihilation in the CERES Experiment
| Authors | H. -J. Schulze, D. Blaschke |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9607055 |
| URL | https://arxiv.org/abs/nucl-th/9607055 |
| DOI | 10.1016/0370-2693(96)00908-2 |
| Journal | Phys.Lett. B386 (1996) 429-436 |
Abstract
We compare the recent CERES data on dielectron production in 200 GeV/u S+Au collisions with the theoretical predictions due to pion annihilation in a thermal hadronization and a string fragmentation scenario. Both models yield similar results for the dilepton mass spectrum. A satisfactory description of the experimental spectrum requires an in-medium reduction of the rho-mass and a freeze-out temperature of about 150 MeV in the thermal model. We emphasize and discuss the influence of experimental acceptance and resolution corrections.
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"abstract": "We compare the recent CERES data on dielectron production in 200 GeV/u S+Au\ncollisions with the theoretical predictions due to pion annihilation in a\nthermal hadronization and a string fragmentation scenario. Both models yield\nsimilar results for the dilepton mass spectrum. A satisfactory description of\nthe experimental spectrum requires an in-medium reduction of the rho-mass and a\nfreeze-out temperature of about 150 MeV in the thermal model. We emphasize and\ndiscuss the influence of experimental acceptance and resolution corrections.",
"arxiv_id": "nucl-th/9607055",
"authors": [
"H. -J. Schulze",
"D. Blaschke"
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"doi": "10.1016/0370-2693(96)00908-2",
"journal_ref": "Phys.Lett. B386 (1996) 429-436",
"title": "Dilepton Enhancement by Thermal Pion Annihilation in the CERES Experiment",
"url": "https://arxiv.org/abs/nucl-th/9607055"
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