Role of neutron flow in the enhancement of heavy ion fusion at energies below the Coulomb barrier and the systematics of threshold barriers

1993 ◽  
Vol 47 (4) ◽  
pp. 1666-1671 ◽  
Author(s):  
D. Shapira ◽  
P. H. Stelson
Keyword(s):  
Coulomb Barrier ◽  
Heavy Ion ◽  
Heavy Ion Fusion

scholarly journals Isospin Conservation in Neutron Rich Systems of Heavy Nuclei

2018 ◽  
Vol 178 ◽  
pp. 05007 ◽  
Author(s):  
Ashok Kumar Jain ◽  
Swati Garg
Keyword(s):  
Theoretical Calculation ◽  
Fission Fragment ◽  
Nuclear Fission ◽  
Heavy Ion ◽  
Mass Region ◽  
Fission Reactions ◽  
Heavy Nuclei ◽  
Practical Applications ◽  
Heavy Ion Fusion

It is generally believed that isospin would diminish in its importance as we go towards heavy mass region due to isospin mixing caused by the growing Coulomb forces. However, it was realized quite early that isospin could become an important and useful quantum number for all nuclei including heavy nuclei due to neutron richness of the systems [1]. Lane and Soper [2] also showed in a theoretical calculation that isospin indeed remains quite good in heavy mass neutron rich systems. In this paper, we present isospin based calculations [3, 4] for the fission fragment distributions obtained from heavy-ion fusion fission reactions. We discuss in detail the procedure adopted to assign the isospin values and the role of neutron multiplicity data in obtaining the total fission fragment distributions. We show that the observed fragment distributions can be reproduced rather reasonably well by the calculations based on the idea of conservation of isospin. This is a direct experimental evidence of the validity of isospin in heavy nuclei, which arises largely due to the neutron-rich nature of heavy nuclei and their fragments. This result may eventually become useful for the theories of nuclear fission and also in other practical applications.

The role of deformations, inertias, and wall friction in heavy ion fusion

1987 ◽  
Vol 36 (6) ◽  
pp. 880-889 ◽  
Author(s):  
Daniel Sperber ◽  
John Stryjewski ◽  
Malgorzata Zielínska-Pfabé
Keyword(s):  
Heavy Ion ◽  
Wall Friction ◽  
Heavy Ion Fusion

scholarly journals Dynamical analysis on heavy-ion fusion reactions near Coulomb barrier

2008 ◽  
Vol 802 (1-4) ◽  
pp. 91-106 ◽  
Author(s):  
Zhao-Qing Feng ◽  
Gen-Ming Jin ◽  
Feng-Shou Zhang
Keyword(s):  
Coulomb Barrier ◽  
Heavy Ion ◽  
Dynamical Analysis ◽  
Fusion Reactions ◽  
Heavy Ion Fusion

Spin distributions in heavy ion fusion at and below the Coulomb barrier

2008 ◽  
pp. 134-137
Author(s):  
B.B. Back ◽  
S. Gil ◽  
A. Lazzarini ◽  
D. -K. Lack ◽  
A. Ray ◽  
...  
Keyword(s):  
Coulomb Barrier ◽  
Heavy Ion ◽  
Spin Distributions ◽  
Heavy Ion Fusion
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