scholarly journals Effects of entrance channel on fusion probability in hot fusion reactions

2016 ◽  
Vol 40 (12) ◽  
pp. 124105
Author(s):  
Long Zhu ◽  
Jun Su ◽  
Ching-Yuan Huang ◽  
Feng-Shou Zhang
2005 ◽  
Vol 22 (4) ◽  
pp. 846-849 ◽  
Author(s):  
Feng Zhao-Qing ◽  
Jin Gen-Ming ◽  
Fu Fen ◽  
Zhang Feng-Shou ◽  
Jia Fei ◽  
...  

2011 ◽  
Vol 17 ◽  
pp. 16019 ◽  
Author(s):  
Abhishek Yadav ◽  
Vijay R. Sharma ◽  
Pushpendra P. Singh ◽  
Manoj K. Sharma ◽  
Devendra P. Singh ◽  
...  

2005 ◽  
Vol 14 (03) ◽  
pp. 373-375 ◽  
Author(s):  
ROBERT SMOLAŃCZUK

Entrance-channel effects in cold fusion reactions that lead to heavy and superheavy nuclei are discussed in the framework of the coupled-channels theory. Dynamical deformation besides collective excitations is taken into account in the entrance channel. Exit channel is described by using the modified statistical model that takes into account the difference between the level density in the equilibrium configuration and that in the saddle-point configuration. Comparison of the calculated fusion cross sections with experimental data is given.


2020 ◽  
Vol 29 (08) ◽  
pp. 2050061
Author(s):  
H. C. Manjunatha ◽  
N. Manjunatha ◽  
L. Seenappa

We have investigated the synthesis of superheavy elements using Cr-induced fusion reactions. We have studied all possible Cr-induced fusion reactions for the synthesis of super heavy nuclei [Formula: see text]. We have achieved the semi-empirical formula for fusion barrier heights ([Formula: see text]), positions ([Formula: see text]), curvature of the inverted parabola ([Formula: see text]) of Cr-induced fusion reactions for the synthesis of superheavy nuclei with atomic number range [Formula: see text]. The proposed formula produces fusion barriers of Cr-induced fusion reactions for the synthesis of super heavy nuclei with the simple inputs of mass number ([Formula: see text]) and atomic number ([Formula: see text]) of projectile-targets. We have also identified the targets for Cr-induced fusion reactions to synthesis superheavy elements of [Formula: see text]. We have also studied the entrance channel parameters such as mass asymmetry ([Formula: see text]), charge asymmetry ([Formula: see text]), coulomb interaction parameter ([Formula: see text]’), Businaro–Gallone mass asymmetry parameter ([Formula: see text]) and Isospin asymmetry parameter [[Formula: see text]]. We hope that our predictions may be the guide for the future experiments in the synthesis of more superheavy elements using [Formula: see text]Cr-induced fusion reactions.


2011 ◽  
Vol 84 (6) ◽  
Author(s):  
Ning Wang ◽  
Junlong Tian ◽  
Werner Scheid

2002 ◽  
Vol 66 (3) ◽  
Author(s):  
J. Kaur ◽  
I. M. Govil ◽  
G. Singh ◽  
Ajay Kumar ◽  
A. Kumar ◽  
...  

2006 ◽  
Vol 15 (02) ◽  
pp. 426-431 ◽  
Author(s):  
J. BŁOCKI ◽  
L. SHVEDOV ◽  
J. WILCZYŃSKI

The dynamical hindrance of fusion after the system of two colliding nuclei overcomes the Coulomb barrier is calculated. Langevin equations, in which the stochastic white noise is added to the conservative and dissipative forces, are solved in the multidimensional space. It is shown that in case of very heavy systems the dynamical trajectories lead from the Coulomb barrier towards the fission valley at locations rather outside the saddle point and then turn downward to scission. Only due to fluctuations a small fraction of trajectories can overcome the saddle point and lead to fusion. Fusion probabilities determined by the ratio of fusion-to-scission fluxes are calculated. In cold fusion reactions induced by different projectiles on 208 Pb and 209 Bi targets, the fusion probability drops down by almost ten orders of magnitude for a range of projectiles from 48 Ca (Zcn = 102) to 86 Kr (Zcn = 118).


1995 ◽  
Vol 51 (2) ◽  
pp. 628-634 ◽  
Author(s):  
A. Charlop ◽  
J. Bierman ◽  
Z. Drebi ◽  
A. Garcia ◽  
S. Gil ◽  
...  

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