Extracting the bulk viscosity of the quark-gluon plasma

被引：39
|
作者：
Rose, Jean-Bernard [1 ]
Paquet, Jean-Francois [1 ]
Denicol, Gabriel S. [1 ]
Luzum, Matthew [1 ,2 ]
Schenke, Bjoem [3 ]
Jeon, Sangyong [1 ]
Gale, Charles [1 ]
机构：
[1] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada
[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[3] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
来源：
NUCLEAR PHYSICS A | 2014年 / 931卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Quark-gluon plasma; Bulk viscosity; Ultracentral relativistic heavy ion collisions;
D O I：
10.1016/j.nuclphysa.2014.09.044
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We investigate the implications of a nonzero bulk viscosity coefficient on the azimuthal momentum anisotropy of ultracentral relativistic heavy ion collisions at the Large Hadron Collider. We find that, with IP-Glasma initial conditions, a finite bulk viscosity coefficient leads to a better description of the flow harmonics in ultracentral collisions. We then extract optimal values of bulk and shear viscosity coefficients that provide the best agreement with flow harmonic coefficients data in this centrality class. (C) 2014 Elsevier B.V. All rights reserved.
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页码：926 / 930
页数：5
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