能量范围从几十MeV/A到几百MeV/A的重离子碰撞的动力学模拟
Dynamical simulation of heavy-ion collisions in the energy range from a few tens MeV/A to a few hundreds MeV/A
摘要：
重离子反应的重叠阶段可以通过动态微观模型来模拟，例如基于分子动力学（MD）方法建立的那些模型，从而允许研究碎片形成过程。本文讨论了米兰大学量子分子动力学（QMD）程序目前的性能，给出了在轰击能量高达$\lsim$ 700 MeV/A时产生碎片和粒子的结果，并初步分析了在45 MeV/A轰击能量下，同位旋组成N/Z在（1 - 1.2）范围内的反应的同位素产率比的同标度行为。
英文摘要：
The overlapping stage of heavy-ion reactions can be simulated by dynamical microscopical models, such as those built on the basis of the Molecular Dynamics (MD) approaches, allowing to study the fragment formation process. The present performances of the Quantum MD (QMD) code developed at the University of Milano are discussed, showing results concerning fragment and particle production at bombarding energies up to $\lsim$ 700 MeV/A, as well as a preliminary analysis on the isoscaling behaviour of isotopic yield ratios for reactions with isospin composition N/Z in the (1 - 1.2) range, at a 45 MeV/A bombarding energy.
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