dorsal/arxiv
View SchemaNon-extensive statistics, fluctuations and correlations in high energy nuclear collisions
| Authors | W. M. Alberico, A. Lavagno, P. Quarati |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9902070 |
| URL | https://arxiv.org/abs/nucl-th/9902070 |
| DOI | 10.1007/s100529900220 |
| Journal | Eur.Phys.J.C12:499-506,2000 |
Abstract
Starting from the experimental evidence that high-energy nucleus-nucleus collisions cannot be described in terms of superpositions of elementary nucleon-nucleon interactions, we analyze the possibility that memory effects and long-range forces imply a nonextensive statistical regime during high energy heavy ion collisions. The relevance of these statistical effects and their compatibility with the available experimental data are discussed. In particular we show that theoretical estimates, obtained in the framework of the generalized nonextensive thermostatistics, can reproduce the shape of the pion transverse mass spectrum and explain the different physical origin of the transverse momentum correlation function of the pions emitted during the central Pb+Pb and during the p+p collisions at 158 A GeV.
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"abstract": "Starting from the experimental evidence that high-energy nucleus-nucleus\ncollisions cannot be described in terms of superpositions of elementary\nnucleon-nucleon interactions, we analyze the possibility that memory effects\nand long-range forces imply a nonextensive statistical regime during high\nenergy heavy ion collisions. The relevance of these statistical effects and\ntheir compatibility with the available experimental data are discussed. In\nparticular we show that theoretical estimates, obtained in the framework of the\ngeneralized nonextensive thermostatistics, can reproduce the shape of the pion\ntransverse mass spectrum and explain the different physical origin of the\ntransverse momentum correlation function of the pions emitted during the\ncentral Pb+Pb and during the p+p collisions at 158 A GeV.",
"arxiv_id": "nucl-th/9902070",
"authors": [
"W. M. Alberico",
"A. Lavagno",
"P. Quarati"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1007/s100529900220",
"journal_ref": "Eur.Phys.J.C12:499-506,2000",
"title": "Non-extensive statistics, fluctuations and correlations in high energy nuclear collisions",
"url": "https://arxiv.org/abs/nucl-th/9902070"
},
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