On the inadequate equilibrium accomplished in mass asymmetric reactions at intermediate energies

2018 ◽  
Vol 33 (34) ◽  
pp. 1850201 ◽  
Author(s):  
Deepshikha ◽  
Suneel Kumar
Keyword(s):  
Molecular Dynamics ◽  
Incident Energy ◽  
Asymmetric Reactions ◽  
Quantum Molecular Dynamics ◽  
Dynamics Model ◽  
Nuclear Stopping ◽  
Mass Asymmetry ◽  
Intermediate Energies

The isospin-dependent quantum molecular dynamics model has been employed to explore the participant–spectator matter. Simulations have been carried out over the whole colliding geometry for mass asymmetric reactions. The degree of nuclear stopping depends strongly on the mass of the projectile, incident energy as well as on the colliding geometry of the reaction. It has been predicted that effect of mass asymmetry can be compensated by varying the colliding geometry.

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.

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