Charged particle multiplicity fluctuations in Pb-Pb collisions are studied for the central events generated using EPOS3 (hydro and hydro+cascade) at . Intermittency analysis is performed in the midrapidity region in two-dimensional (, ) phase space within the narrow transverse momentum () bins in the low region (). Power-law scaling of the normalized factorial moments with the number of bins is not observed to be significant in any of the bins. Scaling exponent , deduced for a few bins, is greater than that of the value 1.304, predicted for the second-order phase transition by the Ginzburg-Landau theory. The link in the notions of fractality is also studied. Generalized fractal dimensions, , are observed to decrease with the order of the moment suggesting the multifractal nature of the particle generation in EPOS3.

中文翻译：

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使用EPOS3研究Pb-Pb碰撞中产生的带电粒子的间歇性

研究了使用EPOS3（水和水+级联）在Pb-Pb碰撞中产生的带电粒子多重涨落 。间歇分析在midrapidity区域执行在二维（， ）窄的横向动量内相空间（）在低频段区域（）。在任何分箱中，未观察到具有分箱数的归一化阶乘矩的幂律定标显着。标度指数，推导出了几箱，比值1.304，预测的由金兹堡-朗道方程二阶相变的更大。还研究了分形概念中的联系。广义分形维数，，观察到与时刻的，为了降低这表明颗粒产生在EPOS3多重分形性质。