A series of new flow observables mixed harmonic multiparticle cumulants, which allow for the first time to quantify the strength of the correlation between different orders of flow coefficients with various moments, was investigated using the hydrodynamic model. These new observables are constructed based on multiparticle cumulants and, thus, by design, will be less sensitive to the nonflow contaminations. In addition to the previous study of correlation involving two flow coefficients with their second moments both correlations of three flow coefficients and the correlations of higher-order moments of $v_2$ and $v_3$ are systematically investigated using the iebe-vishnu hybrid model with two different initial conditions, ampt and trento, respectively. These systematic studies using hydrodynamic models will significantly improve the understanding of the correlations between different orders (and moments) of flow coefficients. Furthermore, the hydrodynamic predictions shown in this paper and the future comparisons to experimental measurements will provide more constraints on theoretical models and extract more information about the transport properties of the quark-gluon plasma created in heavy-ion collisions.

中文翻译：

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在欧洲核子研究中心大型强子对撞机可用能量下对重离子碰撞中混合谐波累积量的研究

使用流体动力学模型研究了一系列新的流动可观测量混合谐波多粒子累积量，首次允许量化不同阶流动系数与不同矩之间的相关强度。这些新的可观察量是基于多粒子累积量构建的，因此，根据设计，对非流动污染物的敏感度较低。除了先前涉及两个流量系数与其二阶矩的相关性研究之外，三个流量系数的相关性和高阶矩的相关性$v_2$ 和 $v_3$分别使用具有两个不同初始条件ampt和trent o的 i ebe-vishnu混合模型进行系统研究。这些使用流体动力学模型的系统研究将显着提高对流动系数不同阶数（和矩）之间相关性的理解。此外，本文中显示的流体动力学预测以及未来与实验测量的比较将为理论模型提供更多约束，并提取有关重离子碰撞中产生的夸克-胶子等离子体传输特性的更多信息。