The influence of initial state fluctuations on heavy quark energy loss in relativistic heavy-ion collisions

被引:11
|
作者
Cao, Shanshan [1 ]
Huang, Yajing [2 ]
Qin, Guang-You [3 ,4 ]
Bass, Steffen A. [1 ]
机构
[1] Duke Univ, Dept Phys, Durham, NC 27708 USA
[2] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China
[3] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China
[4] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China
关键词
relativistic heavy-ion collisions; heavy-quark production; initial state fluctuations in heavy-ion collisions; PB-PB COLLISIONS; ROOT-S(NN)=2.76 TEV; ELLIPTIC FLOW; ROOT-S=2.76; FLAVOR;
D O I
10.1088/0954-3899/42/12/125104
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 study the effects of initial state fluctuations on the dynamical evolution of heavy quarks inside a quark-gluon plasma (QGP) created in relativistic heavy-ion collisions. The evolution of heavy quarks in QGP matter is described utilizing a modified Langevin equation that incorporates the contributions from both collisional and radiative energy loss. The spacetime evolution of the fireball medium is simulated with a (2 + 1)-dimensional viscous hydrodynamic model. We find that when the medium traversed by the heavy quark contains a fixed amount of energy, heavy quarks tend to lose more energy for greater fluctuations of the medium density. This may result in a larger suppression of heavy flavor observables in a fluctuating QGP matter than in a smooth one. The possibility of using hard probes to infer the information of initial states of heavy-ion collisions is discussed.
引用
收藏
页数:12
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