论文标题
流动动力波动引起的各向异性流的速度去相关
Rapidity decorrelation of anisotropic flow caused by hydrodynamic fluctuations
论文作者
论文摘要
我们使用（3+1）维综合动力学模型研究了流体动力波动对高能核碰撞中各向异性流动流的速度的影响。集成的动力学模型由扭曲的初始条件，流体动力学波动和Hadronic Cascades组成。为了了解速度去相关，我们在纵向方向上分析了分解比率。比较波动流体动力学和普通粘性流体动力学之间的分解比，我们发现流体动力波动对速度降低的显着影响。我们还建议计算流量幅度和事件平面角的Legendre系数，以了解纵向方向上各向异性流的非相关性。
We investigate the effect of hydrodynamic fluctuations on the rapidity decorrelations of anisotropic flow in high-energy nuclear collisions using a (3+1)-dimensional integrated dynamical model. The integrated dynamical model consists of twisted initial conditions, fluctuating hydrodynamics, and hadronic cascades on an event-by-event basis. To understand the rapidity decorrelation, we analyze the factorization ratio in the longitudinal direction. Comparing the factorization ratios between fluctuating hydrodynamics and ordinary viscous hydrodynamics, we find a sizable effect of hydrodynamic fluctuations on rapidity decorrelations. We also propose to calculate the Legendre coefficients of the flow magnitude and the event-plane angle to understand the decorrelation of anisotropic flow in the longitudinal direction.
