Anisotropic flows and the shear viscosity of the QGP within an event by event transport approach
| Autor: | Giovanni Luca Guardo, Vincenzo Greco, Francesco Scardina, Salvatore Plumari |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics Large Hadron Collider Relativistic transport theory 010308 nuclear & particles physics Quark-gluon plasma Kinetic energy 01 natural sciences Nuclear physics Viscosity Phase (matter) 0103 physical sciences Quark–gluon plasma Quark-gluon plasma Relativistic transport theory Impact parameter Nuclear Experiment 010306 general physics Anisotropy Beam (structure) |
| Zdroj: | Nuclear and Particle Physics Proceedings. :165-168 |
| ISSN: | 2405-6014 |
| DOI: | 10.1016/j.nuclphysbps.2016.05.035 |
| Popis: | We study the effect of a temperature dependent shear viscosity to entropy density ratio η / s ( T ) on the build-up of the anisotropic flows v n ( p T ) within a relativistic kinetic transport approach that incorporates initial state fluctuations. We find that only in ultra-central collisions (0 – 0.2%) the v n ( p T ) have a stronger sensitivity to the T dependence of η / s in the QGP phase and this sensitivity increases with the order of the harmonic n. We study the linear correlation coefficient C ( ϵ n , v n ) for different impact parameters and for two different beam energies: Au+Au at s = 200 GeV at RHIC and Pb + Pb at s = 2.76 TeV at LHC. The study of the correlations shows that at LHC energies there is more correlation than at RHIC energies. At LHC energies and for ultra-central collisions the linear correlation coefficient C ( ϵ n , v n ) ≈ 1 for n = 2, 3, 4 and 5. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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