Strongly intensive quantities Σ[P _T , N] and Δ[P _T , N] have become one of the important tools in study of phase transitions and critical points in high energy heavy-ion collisions. In this paper the properties of Σ[P _T , N] and Δ[P _T , N] are discussed within different colliding nuclei systems generated by the AMPT model. The combined event method are proposed to simulate the model of independent sources in which Σ[P _T , N] and Δ[P _T , N] are independent of the number of original events. The effects of transverse momentum, pseudorapidity and parton cascade are also discussed.

中文翻译：

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使用 AMPT 模型分析逐事件横向动量和多重性波动的强密集量

强强度量Σ[ P _T , N ] 和Δ[ P _T , N ] 已成为研究高能重离子碰撞相变和临界点的重要工具之一。在本文中，Σ[ P _T , N ] 和Δ[ P _T , N ] 的性质在AMPT 模型生成的不同碰撞核系统中进行了讨论。提出了组合事件法来模拟独立源模型，其中Σ[ P _T , N ] 和Δ[ P _T , N ] 与原始事件的数量无关。还讨论了横向动量、伪快速性和部分子级联的影响。