We investigate the central nucleus–nucleus collisions at 4.2 A GeV/c exploiting the simulated results, obtained from ultra-relativistic quantum molecular dynamic model code1.3. The method used for quantitative analysis is free of the undesired background contributions and needs no prior information. The procured results reveal that the nearest neighbor momentum spacing correlation among the secondary particles sharply decreases with increasing particle multiplicity. The critical values of the multiplicity can be linked with central collisions and employed as a tool to adjust the centrality.

中文翻译：

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中心核-核相互作用最近邻空间动量分布的模型预测研究

我们利用从超相对论量子分子动力学模型code1.3获得的模拟结果，研究了在4.2 A GeV / c处的中心核－核碰撞。用于定量分析的方法没有不需要的背景贡献，不需要任何先验信息。获得的结果表明，次级粒子之间最近的动量间距相关性随粒子多样性的增加而急剧下降。多样性的临界值可以与中心碰撞相关联，并用作调整中心度的工具。