Systematic Study on System Size Dependence of Global Stopping： Role of Momentum-Dependent Interactions and Symmetry Energy  

作　　者：Sanjeev Kumar Suneel Kumar 

机构地区：[1]School of Physics and Material Science, Thapar University, Patiala-147004, Punjab, lndia

出　　处：《Chinese Physics Letters》2010年第6期74-77,共4页中国物理快报（英文版）

摘　　要：Using the isospin-dependent quantum molecular dynamical model, we systematically study the role of symme- try energy with and without momentum-dependent interactions on the global nuclear stopping. We simulate the reactions by varying the total mass of the system from 80 to 394 at different beam energies from 30 to 1000 Me V/nucleon over central and semi-central geometries. The nuclear stopping is found to be sensitive towards the momentum-dependent interactions and symmetry energy at low incident energies. The momentum-dependent interactions are found to weaken the finite size effects in nuclear stopping.Using the isospin-dependent quantum molecular dynamical model, we systematically study the role of symme- try energy with and without momentum-dependent interactions on the global nuclear stopping. We simulate the reactions by varying the total mass of the system from 80 to 394 at different beam energies from 30 to 1000 Me V/nucleon over central and semi-central geometries. The nuclear stopping is found to be sensitive towards the momentum-dependent interactions and symmetry energy at low incident energies. The momentum-dependent interactions are found to weaken the finite size effects in nuclear stopping.

分 类 号：O572[理学—粒子物理与原子核物理] N94[理学—物理]