Talk given by Gargi Chaudhuri at the 11th International Conference on Nucleus-Nucleus Collisions (NN2012), San Antonio, Texas, USA, May 27-June 1, 2012. 10 pages, 7 figures
发表信息:
Journal of Physics: Conference Series 420(2013)012098
A model for projectile fragmentation is developed whose origin can be traced back to the Bevalac era. The model positions itself between the phenomenological EPAX parametrization and transport models like "Heavy Ion Phase Space Exploration" (HIPSE) model and antisymmetrised molecular dynamics (AMD) model. A very simple impact parameter dependence of input temperature is incorporated in the model which helps to analyze the more peripheral collisions. The model is applied to calculate the charge, isotopic distributions, average number of intermediate mass fragments and the average size of largest cluster at different Z_{bound} of different projectile fragmentation reactions at different energies.
Dynamical properties and secondary decay effects of projectile fragmentation in 107,124Sn + 120Sn collisions at 600 MeV/nucleon
用同位旋相关的量子分子动力学(IQMD)模型研究了600 MeV/核子的107,124 Sn +120 Sn碰撞中的旁观者的形成和碎裂过程。在动力学演化过程中,采用最小生成树算法和平行运动量与横向运动量之比来识别平衡弹丸旁观者。二次衰变对碎裂观测值的影响进行了研究,进行计算和不统计代码GEMINI。通过比较计算的产物产率和相关性与ALADIN合作研究的反应的实验结果的理论方法的有效性进行检查。
Collective-flow signatures of bubble nuclei in intermediate-energy projectile fragmentation reactions
Henan Normal University(河南师范大学);Shanghai Advanced Research Institute, Chinese Academy of Sciences(中国科学院上海高等研究院);Institute of Nuclear Science and Technology, Henan Academy of Sciences(河南省科学院核科学技术的研究所);Shanghai Research Center for Theoretical Nuclear Physics, NSFC and Fudan University(国家自然科学基金委与复旦大学理论物理上海研究中心);Shanghai Institute of Applied Physics, Chinese Academy of Sciences(中国科学院上海应用物理研究所);University of Chinese Academy of Sciences(中国科学院大学)