论文标题

量子分子动力学模型及其在重离子碰撞中的应用

Progress of Quantum Molecular Dynamics model and its applications in Heavy Ion Collisions

论文作者

Zhang, Yingxun, Wang, Ning, Li, Qingfeng, Ou, Li, Tian, Junlong, Liu, Min, Zhao, Kai, Wu, Xizhen, Li, Zhuxia

论文摘要

在这篇评论文章中,我们首先简要介绍了用于研究低离子碰撞到中间能量的重离子碰撞的运输理论和量子分子动力学模型。综述了改进的量子分子动力学模型(IMQMD)和超相关量子分子动力学模型(URQMD)的发展。在两个模型的框架内审查和讨论了与融合,多核子转移,碎片,集体流量和粒子产生有关的反应机制和现象。还讨论了在过去几十年中对核子内核子横截面的状态和中核内核子横截面的不对称核方程的约束,也讨论了这些约束的不确定性。最后,我们讨论了传输模型发展的未来方向,以提高对反应机制的理解,各种可观察物的描述,对状态的核方程的限制以及对核中核内核核内跨跨部分的约束。

In this review article, we first briefly introduce the transport theory and quantum molecular dynamics model applied in the study of the heavy ion collisions from low to intermediate energies. The developments of improved quantum molecular dynamics model (ImQMD) and ultra-relativistic quantum molecular dynamics model (UrQMD), are reviewed. The reaction mechanism and phenomena related to the fusion, multinucleon transfer, fragmentation, collective flow and particle production are reviewed and discussed within the framework of the two models. The constraints on the isospin asymmetric nuclear equation of state and in-medium nucleon-nucleon cross sections by comparing the heavy ion collision data with transport models calculations in last decades are also discussed, and the uncertainties of these constraints are analyzed as well. Finally, we discuss the future direction of the development of the transport models for improving the understanding of the reaction mechanism, the descriptions of various observables, the constraint on the nuclear equation of state, as well as for the constraint on in-medium nucleon-nucleon cross sections.

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