dorsal/arxiv
View SchemaParticle Number Fluctuations in High Energy Nucleus-Nucleus Collisions from Microscopic Transport Approaches
| Authors | V. P. Konchakovski, S. Haussler, M. I. Gorenstein, E. L. Bratkovskaya, M. Bleicher, H. Stoecker |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0511083 |
| URL | https://arxiv.org/abs/nucl-th/0511083 |
| DOI | 10.1103/PhysRevC.73.034902 |
| Journal | Phys.Rev.C73:034902,2006 |
Abstract
Event-by-event multiplicity fluctuations in nucleus-nucleus collisions are studied within the HSD and UrQMD transport models. The scaled variances of negative, positive, and all charged hadrons in Pb+Pb at 158 AGeV are analyzed in comparison to the data from the NA49 Collaboration. We find a dominant role of the fluctuations in the nucleon participant number for the final hadron multiplicity fluctuations. This fact can be used to check different scenarios of nucleus-nucleus collisions by measuring the final multiplicity fluctuations as a function of collision centrality. The analysis reveals surprising effects in the recent NA49 data which indicate a rather strong mixing of the projectile and target hadron production sources even in peripheral collisions.
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"abstract": "Event-by-event multiplicity fluctuations in nucleus-nucleus collisions are\nstudied within the HSD and UrQMD transport models. The scaled variances of\nnegative, positive, and all charged hadrons in Pb+Pb at 158 AGeV are analyzed\nin comparison to the data from the NA49 Collaboration. We find a dominant role\nof the fluctuations in the nucleon participant number for the final hadron\nmultiplicity fluctuations. This fact can be used to check different scenarios\nof nucleus-nucleus collisions by measuring the final multiplicity fluctuations\nas a function of collision centrality. The analysis reveals surprising effects\nin the recent NA49 data which indicate a rather strong mixing of the projectile\nand target hadron production sources even in peripheral collisions.",
"arxiv_id": "nucl-th/0511083",
"authors": [
"V. P. Konchakovski",
"S. Haussler",
"M. I. Gorenstein",
"E. L. Bratkovskaya",
"M. Bleicher",
"H. Stoecker"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevC.73.034902",
"journal_ref": "Phys.Rev.C73:034902,2006",
"title": "Particle Number Fluctuations in High Energy Nucleus-Nucleus Collisions from Microscopic Transport Approaches",
"url": "https://arxiv.org/abs/nucl-th/0511083"
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