Stability of nuclei in peripheral collisions in the JAERI quantum molecular dynamics model

2009 ◽  
Vol 79 (1) ◽  
Author(s):  
Davide Mancusi ◽  
Koji Niita ◽  
Tomoyuki Maruyama ◽  
Lembit Sihver
Keyword(s):  
Molecular Dynamics ◽  
Quantum Molecular Dynamics ◽  
Dynamics Model ◽  
Peripheral Collisions

scholarly journals PROBING THE DENSITY DEPENDENCE OF SYMMETRY ENERGY AT SUBSATURATION DENSITY WITH HICs

2010 ◽  
Vol 19 (08n09) ◽  
pp. 1639-1646
Author(s):  
YINGXUN ZHANG ◽  
M. B. TSANG ◽  
ZHUXIA LI ◽  
P. DANIELEWICZ ◽  
W. G. LYNCH ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Density Dependence ◽  
Symmetry Energy ◽  
Quantum Molecular Dynamics ◽  
Dynamics Model ◽  
Cluster Emission ◽  
Central Collisions ◽  
Peripheral Collisions ◽  
Calculation Results ◽  
Consistent Constraint

The reaction mechanism of the central collisions and peripheral collisions for 112,124 Sn + 112,124 Sn at E/A = 50 MeV is investigated within the framework of the Improved Quantum Molecular Dynamics model. The results show that multifragmentation process is an important mechanism at this energy region, and the influence of the cluster emission on the double n / p ratios and the isospin transport ratio is important. Furthermore, three observables, double n / p ratios, isospin diffusion and the rapidity distribution of the ratio R7 for 112,124 Sn +112,124 Sn at E/A = 50 MeV are analyzed with the Improved Quantum Molecular Dynamics model. The results show that these three observables are sensitive to the density dependence of the symmetry energy. By comparing the calculation results to the data, the consistent constraint on the density dependence of the symmetry energy from these three observables is obtained.

scholarly journals SEARCH FOR POSSIBLE WAY OF PRODUCING SUPER-HEAVY ELEMENTS: DYNAMIC STUDY ON DAMPED REACTIONS OF 244Pu+244Pu, 238U+238U and 197Au+197Au

2005 ◽  
Vol 20 (34) ◽  
pp. 2619-2627 ◽  
Author(s):  
NING WANG ◽  
ZHUXIA LI ◽  
XIZHEN WU ◽  
ENGUANG ZHAO
Keyword(s):  
Molecular Dynamics ◽  
Time Scale ◽  
Incident Energy ◽  
Composite System ◽  
Binding Energies ◽  
Decay Process ◽  
Heavy Elements ◽  
Quantum Molecular Dynamics ◽  
Dynamics Model ◽  
Production Probability

By using the Improved Quantum Molecular Dynamics model, the 244 Pu +244 Pu , 238 U +238 U and 197 Au +197 Au reactions at the energy range of E c.m. =800 MeV to 2000 MeV are studied. We find that the production probability of superheavy fragments (SHFs) with Z≥114 for the 244 Pu +244 Pu reaction is much higher compared with that for the 238 U +238 U reaction and no product of SHF is found for the 197 Au +197 Au . The production probability of SHFs strongly depends on the incident energy and a narrowly peaked energy dependence of production probability is found. The decay mechanism of the composite system of projectile and target is studied and the time scale of decay process is explored. The binding energies and the shapes of SHFs are studied. The binding energies of SHFs are broadly distributed and the shapes of SHFs are strongly deformed.

scholarly journals Total Reaction Cross Section in an Isospin-Dependent Quantum Molecular Dynamics Model

2003 ◽  
Vol 20 (3) ◽  
pp. 354-357 ◽  
Author(s):  
Wei Yi-Bin ◽  
Cai Xiang-Zhou ◽  
Shen Wen-Qing ◽  
Ma Yu-Gang ◽  
Zhang Hu-Yong ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Cross Section ◽  
Reaction Cross Section ◽  
Reaction Cross ◽  
Total Reaction Cross Section ◽  
Quantum Molecular Dynamics ◽  
Dynamics Model ◽  
Total Reaction
Sign in / Sign up

Export Citation Format

Share Document