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

• Published in: Chinese physics letters Vol. 27; no. 6; pp. 74 - 77
• Main Authors: Kumar, Sanjeev, Kumar, Suneel
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.06.2010
• Subjects: Beams (radiation); Dynamical systems; Dynamics; Energy (nuclear); Energy use; Mathematical analysis; Nucleons; Symmetry; 入射能量; 几何中心; 对称能; 有限尺寸效应; 相互作用; 量子分子动力学模型
• ISSN: 0256-307X; 1741-3540
• DOI: 10.1088/0256-307X/27/6/062504

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.