dorsal/arxiv
View SchemaCausal Viscous Hydrodynamics for Central Heavy-Ion Collisions II: Meson Spectra and HBT Radii
| Authors | Paul Romatschke |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0701032 |
| URL | https://arxiv.org/abs/nucl-th/0701032 |
| DOI | 10.1140/epjc/s10052-007-0354-z |
| Journal | Eur.Phys.J.C52:203-209,2007 |
Abstract
Causal viscous hydrodynamic fits to experimental data for pion and kaon transverse momentum spectra from central Au+Au collisions at \sqrt{s_{NN}}=200 GeV are presented. Starting the hydrodynamic evolution at 1 fm/c and using small values for the relaxation time, reasonable fits up to moderate ratios \eta/s\simeq 0.4 can be obtained. It is found that a percentage of roughly 50 \eta/s to 75 \eta/s of the final meson multiplicity is due to viscous entropy production. Finally, it is shown that with increasing viscosity, the ratio of HBT radii R_{out}/R_{side} approaches and eventually matches the experimental data.
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"abstract": "Causal viscous hydrodynamic fits to experimental data for pion and kaon\ntransverse momentum spectra from central Au+Au collisions at \\sqrt{s_{NN}}=200\nGeV are presented. Starting the hydrodynamic evolution at 1 fm/c and using\nsmall values for the relaxation time, reasonable fits up to moderate ratios\n\\eta/s\\simeq 0.4 can be obtained. It is found that a percentage of roughly 50\n\\eta/s to 75 \\eta/s of the final meson multiplicity is due to viscous entropy\nproduction. Finally, it is shown that with increasing viscosity, the ratio of\nHBT radii R_{out}/R_{side} approaches and eventually matches the experimental\ndata.",
"arxiv_id": "nucl-th/0701032",
"authors": [
"Paul Romatschke"
],
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"nucl-th",
"hep-ph"
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"doi": "10.1140/epjc/s10052-007-0354-z",
"journal_ref": "Eur.Phys.J.C52:203-209,2007",
"title": "Causal Viscous Hydrodynamics for Central Heavy-Ion Collisions II: Meson Spectra and HBT Radii",
"url": "https://arxiv.org/abs/nucl-th/0701032"
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