论文标题
超级忠实的重型离子碰撞中的Deuteron生产：合并的比较和最小跨越树的过程
Deuteron Production in Ultra-Relativistic Heavy-Ion Collisions: A Comparison of the Coalescence and the Minimum Spanning Tree Procedure
论文作者
论文摘要
通过采用两个最近先进的模型（MST）方法（MST）方法（MST）方法（MST）方法和合并模型，研究了相对论能量中的Deutons在重离子碰撞中的形成。尽管合并机制将核子在动力学冻结超表面上结合到杜特龙中，但MST在时间演变的不同阶段识别了簇。我们发现，这两个聚类过程均给出了URQMD和PHQMD环境中的Deuteron可观察物的结果。此外，结果与$ \ sqrt {s_ {nn}} = 8.8 $ GEV的Pb+Pb碰撞中的Deuteron产生的实验数据非常吻合（在本研究中选择用于比较方法和模型）。一项详细的研究表明，所产生的杜特龙的坐标空间分布与游离核和其他辐射的坐标不同。因此，杜特龙不会被额外的撤退摧毁。
The formation of deuterons in heavy-ion collisions at relativistic energies is investigated by employing two recently advanced models -- the Minimum Spanning Tree (MST) method and the coalescence model by embedding them in the PHQMD and the UrQMD transport approaches. While the coalescence mechanism combines nucleons into deuterons at the kinetic freeze-out hypersurface, the MST identifies the clusters during the different stages of time evolution. We find that both clustering procedures give very similar results for the deuteron observables in the UrQMD as well as in the PHQMD environment. Moreover, the results agree well with the experimental data on deuteron production in Pb+Pb collisions at $\sqrt{s_{NN}} = 8.8$ GeV (selected for the comparison of the methods and models in this study). A detailed investigation shows that the coordinate space distribution of the produced deuterons differs from that of the free nucleons and other hadrons. Thus, deuterons are not destroyed by additional rescattering.
