Correlation between mean transverse momentum and anisotropic flow in heavy-ion collisions

被引：38

作者：

Giacalone, Giuliano ^{[1
,2
]}

Gardim, Fernando G. ^{[3
]}

Noronha-Hostler, Jacquelyn ^{[4
]}

Ollitrault, Jean-Yves ^{[1
]}

机构：

[1] Univ Paris Saclay, Inst Phys Theor, CEA, CNRS, F-91191 Gif Sur Yvette, France

[2] Heidelberg Univ, Inst Theoret Phys, Philosophenweg 16, D-69120 Heidelberg, Germany

[3] Univ Fed Alfenas, Inst Ciencia & Tecnol, BR-37715400 Pocos De Caldas, MG, Brazil

[4] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

来源：

PHYSICAL REVIEW C | 2021年 / 103卷 / 02期

基金：

巴西圣保罗研究基金会; 美国能源部;

关键词：

D O I：

10.1103/PhysRevC.103.024909

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：

The correlation between the mean transverse momentum of outgoing particles, < p(t)>, and the magnitude of anisotropic flow, v(n), has recently been measured in Pb + Pb collisions at the CERN Large Hadron Collider, as a function of the collision centrality. We confirm the previous observation that event-by-event hydrodynamics predicts a correlation between v(n) and < p(t)> that is similar to that measured in data. We show that the magnitude of this correlation can be directly predicted from the initial condition of the hydrodynamic calculation, for n = 2, 3, if one replaces v(n) by the corresponding initial-state anisotropy, epsilon(n), and < p(t)> by the total energy per unit rapidity of the fluid at the beginning of the hydrodynamic expansion.

引用

页数：6

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