摘要
文章研究了197Au+197Au体系快三裂变反应的角分布与碰撞参数的关联性,并与实验上角分布数据做对比,结果表明该裂变是深度非弹性或准弹性散射过程,易发生在中等和大碰撞参数下。
This paper studies the relationship Between angular distributions in quick ternary fissions with impact parameter. By comparing experimental data of angular distributions,it concludes that the quick ternary fissions are process of deep inelastic or elastic scattering and are easy to occur in intermediate and large impact parameters.
引文
[1]SKWIRA-CHALOT I,SIWEK-WILCZYNSKA K,WILCZYNSKI J,et al.Fast Ternary and quaternary breakup of the 197Au+197Au system in collisions at 15 Me V/nucleon[J].Phys Rev Lett,2008,101:262701.
[2]WILCZYNSKI J,SKWIRA-CHALOT I,SIWEKWILCZYNSKA K,et al.Aligned breakup of heavy nuclear systems as a new type of deep inelastic collisions at small impact parameters[J].Phys Rev C,2010,81:067604.
[3]AICHELIN J.“Quantum”molecular dynamics―a dynamical microscopic n-body approach to investigate fragment formation and the nuclear equation of state in heavy ion collisions[J].Phys Rep,1991,202,233-360.
[4]王宁.量子分子动力学模型的发展及其在低能核反应中的应用[D].北京:中国原子能科学研究院,2003.
[5]李贤,肖啸,许黎.洛伦兹变换在三裂变核反应角分布研究的应用[J].内江师范学院学报,2014,29(12):9-13.
[6]LI X,etal.Angular distributions of fragments produced in ernary reaction of 197Au+197Au at 15 Me V[J].Mod.Phys.Lett.A,2011,26:449-460.