Fluid dynamics with saturated minijet initial conditions in ultrarelativistic heavy-ion collisions

被引：39

作者：

Paatelainen, R. ^{[1
,2
]}

Eskola, K. J. ^{[1
,2
]}

Niemi, H. ^{[1
,2
]}

Tuominen, K. ^{[2
,3
]}

机构：

[1] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland

[2] Univ Helsinki, Helsinki Inst Phys, FI-00014 Helsinki, Finland

[3] Univ Helsinki, Dept Phys, FI-00014 Helsinki, Finland

来源：

PHYSICS LETTERS B | 2014年 / 731卷

基金：

芬兰科学院;

关键词：

TRANSIENT RELATIVISTIC THERMODYNAMICS; CENTRALITY DEPENDENCE; TRANSVERSE ENERGIES; MULTIPLICITIES; QUARK; FLOW;

D O I：

10.1016/j.physletb.2014.02.018

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using next-to-leading order perturbative QCD and a conjecture of saturation to suppress the production of low-energy partons, we calculate the initial energy densities and formation times for the dissipative fluid dynamical evolution of the quark-gluon plasma produced in ultrarelativistic heavy-ion collisions. We identify the model uncertainties and demonstrate the predictive power of the approach by a good global agreement with the measured centrality dependence of charged particle multiplicities, transverse momentum spectra and elliptic flow simultaneously for the Pb+Pb collisions at the LHC and Au+Au at RHIC. In particular, the shear viscosity in the different phases of QCD matter is constrained in this new model simultaneously by all these data. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/).

引用

页码：126 / 130

页数：5

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