Charge-dependent correlations from both background and charge separation contribute to experimental observables in heavy-ion collisions. In this paper, we use stochastic hydrodynamics to study background charge asymmetry due to fluctuations. Using the rapidity-dependent correlation and a simple ansatz for particle distributions, we find a fluctuation-induced correlation to provide a type of background F -correlation. Experimental data for Au+Au collisions at ##IMG## [http://ej.iop.org/images/0253-6102/72/11/115304/ctpabb7d9ieqn1.gif] {$\sqrt{{s}_{\mathrm{NN}}}=200\,\mathrm{GeV}$} are compared. We also make predictions for F -correlations in isobar collisions. Combining this with our previous chiral magnetic effect results, we obtain δ -correlations for collisions in the three types of system. Computations from our model show an almost identical background with less than 2% difference for isobars, but roughly 10% difference for their charge...

中文翻译：

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随机流体动力学在重离子碰撞中的电荷依赖相关性

来自背景和电荷分离的依赖电荷的相关性有助于重离子碰撞的实验观察。在本文中，我们使用随机流体动力学来研究由于波动引起的背景电荷不对称性。使用依赖于速度的相关性和简单的ansatz进行粒子分布，我们发现了由波动引起的相关性，以提供一种背景F相关性。## IMG ##处Au + Au碰撞的实验数据[http://ej.iop.org/images/0253-6102/72/11/115304/ctpabb7d9ieqn1.gif] {$ \ sqrt {{s} _ { \ mathrm {NN}}} = 200 \，\ mathrm {GeV} $}进行比较。我们还预测了等压线碰撞中的F相关性。结合我们先前的手性磁效应结果，我们获得了三种类型系统中碰撞的δ相关性。