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arXiv 1005.4783nucl-th
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形变和取向在中能轻形变核引起的重离子碰撞中的作用

The roles of deformation and orientation in heavy-ion collisions induced by light deformed nuclei at intermediate energy

X. G. Cao, G. Q. Zhang, X. Z. Cai, Y. G. Ma, W. Guo, J. G. Chen, W. D. Tian, D. Q. Fang, H. W. Wang

摘要:

采用与同位旋相关的量子分子动力学(IDQMD)模型,系统地研究了轴对称形变$^{24}$ Mg + $^{24}$ Mg碰撞的反应动力学.结果表明,不同的形变和取向导致反应动力学性质明显不同。我们发现,一些可观的,如核阻止本领($R$),碎片的多重性,和椭圆流是非常敏感的初始变形和取向。在不同变形的中心体-体碰撞中,椭圆流存在偏心率标度。另外,尖-尖和体-体构型是中心反应动力学过程中的两种极端情况。

英文摘要:

The reaction dynamics of axisymmetric deformed $^{24}$Mg + $^{24}$Mg collisions have been investigated systematically by an isospin-dependent quantum molecular dynamics (IDQMD) model. It is found that different deformations and orientations result in apparently different properties of reaction dynamics. We revealed that some observables such as nuclear stopping power ($R$), multiplicity of fragments, and elliptic flow are very sensitive to the initial deformations and orientations. There exists an eccentricity scaling of elliptic flow in central body-body collisions with different deformations. In addition, the tip-tip and body-body configurations turn out to be two extreme cases in central reaction dynamical process.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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