The influence of the entrance channel mass asymmetry on the reaction mechanism

1980 ◽  
Vol 296 (4) ◽  
pp. 287-294 ◽  
Author(s):  
S. Agarwal ◽  
J. Galin ◽  
B. Gatty ◽  
D. Guerreau ◽  
M. Lefort ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Entrance Channel ◽  
Mass Asymmetry

scholarly journals Entrance channel mass asymmetry dependence of compound nucleus formation

2008 ◽  
Vol 665 (4) ◽  
pp. 314-317 ◽  
Author(s):  
Bao-An Bian ◽  
Feng-Shou Zhang ◽  
Hong-Yu Zhou
Keyword(s):  
Compound Nucleus ◽  
Entrance Channel ◽  
Nucleus Formation ◽  
Mass Asymmetry ◽  
Compound Nucleus Formation

scholarly journals Multifragmentation process for different mass asymmetry in the entrance channel around the Fermi energy

2002 ◽  
Vol 709 (1-4) ◽  
pp. 367-391 ◽  
Author(s):  
N. Bellaize ◽  
O. Lopez ◽  
J.P. Wieleczko ◽  
D. Cussol ◽  
G. Auger ◽  
...  
Keyword(s):  
Fermi Energy ◽  
Entrance Channel ◽  
Mass Asymmetry

Influence of the mass asymmetry of the entrance channel on incomplete fusion processes

1989 ◽  
Vol 334 (3) ◽  
pp. 315-327 ◽  
Author(s):  
L. Pienkowski ◽  
A. Lleres ◽  
H. Nifenecker ◽  
J. Blachot ◽  
J. Crancon ◽  
...  
Keyword(s):  
Entrance Channel ◽  
Incomplete Fusion ◽  
Mass Asymmetry

Investigations on the study of entrance channel effects in synthesis of superheavy elements using Cr-induced fusion reactions

2020 ◽  
Vol 29 (08) ◽  
pp. 2050061
Author(s):  
H. C. Manjunatha ◽  
N. Manjunatha ◽  
L. Seenappa
Keyword(s):  
Atomic Number ◽  
Asymmetry Parameter ◽  
Superheavy Elements ◽  
Entrance Channel ◽  
Heavy Nuclei ◽  
Fusion Reactions ◽  
Number Range ◽  
Mass Asymmetry ◽  
Number Formula ◽  
Super Heavy Nuclei

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.

scholarly journals Neutron excess dependence of fusion barrier parameters

2019 ◽  
Vol 11 ◽  
Author(s):  
N. G. Nicolis
Keyword(s):  
Barrier Height ◽  
Potential Application ◽  
Heavy Ion ◽  
Degree Of Freedom ◽  
Entrance Channel ◽  
Neutron Excess ◽  
Fusion Barrier ◽  
Mass Asymmetry ◽  
Heavy Ion Fusion

The neutron excess dependence of heavy ion fusion barrier parameters is investigated, guided by predictions of different heavy ion potentials. We develop parametrizations for the fusion barrier height and radius which explicitly involve the entrance channel mass asymmetry and neutron excess of the projectile and target. The developed expressions reproduce theoretical barrier parameters within 0.2%, which represents a big improvement over previous parametrizations. Furthermore, they provide a means to assess the importance of the neutron excess degree of freedom implied by each potential. Application of these expressions to systematics of experimental barrier parameters will be discussed.

Observation of entrance channel mass-asymmetry effect on incomplete fusion reaction for system

2012 ◽  
Vol 879 ◽  
pp. 107-131 ◽  
Author(s):  
D. Singh ◽  
Rahbar Ali ◽  
M. Afzal Ansari ◽  
B.S. Tomar ◽  
M.H. Rashid ◽  
...  
Keyword(s):  
Fusion Reaction ◽  
Entrance Channel ◽  
Incomplete Fusion ◽  
Asymmetry Effect ◽  
Mass Asymmetry

SHELL CORRECTION ENERGY AND THE ENTRANCE CHANNEL EFFECT ON THE FORMATION OF SUPERHEAVY NUCLEI

2008 ◽  
Vol 17 (supp01) ◽  
pp. 80-96 ◽  
Author(s):  
BAO-AN BIAN ◽  
FENG-SHOU ZHANG ◽  
SAI-SAI DU
Keyword(s):  
Compound Nucleus ◽  
Cross Sections ◽  
Entrance Channel ◽  
Shell Correction ◽  
Superheavy Nuclei ◽  
Nucleus Formation ◽  
Mass Asymmetry ◽  
Compound Nucleus Formation ◽  
The One ◽  
Shell Correction Energy

Based on the improved isospin dependent molecular dynamics model in which the shell correction energy of the system is calculated by using deformed two-center shell model and the surface energy of the system is improved by introducing a switch function that combines the surface energies of projectile and target with the one of the compound nucleus. The effects of the shell correction energy on synthesis of superheavy nuclei and the fusion cross sections in asymmetric and nearly symmetric reaction systems leading to the same compound nuclei 62 Zn , 76 Kr , and 202 Pb are studied. The entrance channel mass asymmetry dependence of compound nucleus formation is found by analyzing the shell correction energies, Coulomb barriers and fusion cross sections. The experimental data are described quantitatively by the present model. It is found that the compound nucleus formation is favorable for the systems with larger mass asymmetry.

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