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arXiv 1105.3590nucl-th
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用改进的团簇化方法研究重离子碰撞中碎片的形成

Formation of fragments in heavy-ion collisions using modified clusterization method

Supriya Goyal, Rajeev K. Puri

摘要:

我们研究了碎片的形成,通过扩展的最小生成树方法(MST)的聚类。在这个扩展中,每个片段都要进行结合能检查,使用修改后的Bethe-Weizsacker公式计算。早些时候,施加了4 MeV/核子的恒定结合能切割。我们的197 Au +197 Au碰撞的结果进行了比较ALADiN的数据,也与基于模拟退火技术的计算。我们将表明,目前的修改版本相比,MST方法提高了协议。

英文摘要:

We study the formation of fragments by extending the minimum spanning tree method (MST) for clusterization. In this extension, each fragment is subjected to a binding-energy check calculated using the modified Bethe-Weizsacker formula. Earlier, a constant binding-energy cut of 4 MeV/nucleon was imposed. Our results for 197Au +197 Au collisions are compared with ALADiN data and also with the calculations based on the simulated annealing technique. We shall show that the present modified version improves the agreement compared to the MST method.

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