Exploring the effect of eccentricity on geometry nuclear collisions by Glauber Monte Carlo simulation

Yutian Liu, Yechen Liu, Zelin Liu, Xiaoya Ding
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Abstract

This paper will analyze different properties of a nuclear collision and their correlation with the geometry of collision using the Glauber Monte-Carlo based calculations. Among all properties, the eccentricity is the main focus of this research. In order to investigate its impact on collision parameters, three-dimensional histograms are created, using given collision parameters, under different categories of numbers of participant nucleons. Comparisons between the histograms allow the exploration of connections between this property and the geometries of lead nuclear collisions, namely, the ellipticity of the collision of the two lead nuclei as eccentricity increases from 0 to 1. Our result is intuitive. The ellipticity of the collision has a positive correlation with the eccentricity, as when the difference between the number of participant nucleons on the L1 and L2 axes increases with eccentricity. The number of nucleons participating in the collision also increases with eccentricity. These are all coherent with past studies conducted in this field.
通过格劳伯蒙特卡洛模拟探索偏心率对几何核碰撞的影响
本文将利用基于格劳伯蒙特卡洛计算方法,分析核碰撞的不同属性及其与碰撞几何形状的相关性。在所有属性中,偏心率是本研究的重点。为了研究偏心率对碰撞参数的影响,我们使用给定的碰撞参数,根据不同类别的参与核子数量绘制了三维直方图。通过直方图之间的比较,可以探索这一特性与铅核碰撞几何形状之间的联系,即偏心率从 0 增加到 1 时,两个铅核碰撞的椭圆度。我们的结果很直观。碰撞的椭圆度与偏心率呈正相关,因为 L1 轴和 L2 轴上参与碰撞的核子数量之差随着偏心率的增大而增大。参与碰撞的核子数量也随着偏心率的增加而增加。这些都与过去在这一领域进行的研究相一致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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