The effect of nuclear matter compressibility on fusion cross-section and barrier distribution of deformed–spherical nuclei

2002 ◽  
Vol 14 (9) ◽  
pp. 1425-1431 ◽  
Author(s):  
M. Ismail ◽  
A.Y. Ellithi
Keyword(s):  
Nuclear Matter ◽  
Cross Section ◽  
Fusion Cross Section ◽  
Barrier Distribution ◽  
Spherical Nuclei

Fusion and Breakup Reactions of 17S + 208Pb and 15C + 232ThHalo Nuclei Systems

2015 ◽  
Vol 11 (2) ◽  
pp. 2972-2978
Author(s):  
Fouad A. Majeed ◽  
Yousif A. Abdul-Hussien
Keyword(s):  
Experimental Data ◽  
Cross Section ◽  
Fusion Reaction ◽  
Fusion Cross Section ◽  
Reaction Cross ◽  
Recent Experimental Data ◽  
Barrier Distribution ◽  
Coupled Channel ◽  
Total Fusion ◽  
Full Quantum

In this study the calculations of the total fusion reaction cross section have been performed for fusion reaction systems 17F + 208Pb and 15C + 232Th which involving halo nuclei by using a semiclassical approach.The semiclassical treatment is comprising the WKB approximation to describe the relative motion between target and projectile nuclei, and Continuum Discretized Coupled Channel (CDCC) method to describe the intrinsic motion for both target and projectile nuclei. For the same of comparsion a full quantum mechanical clacualtions have been preforemd using the (CCFULL) code. Our theorticalrestuls are compared with the full quantum mechaincialcalcuations and with the recent experimental data for the total fusion reaction  checking the stability of the distancesThe coupled channel calculations of the total fusion cross section σfus, and the fusion barrier distribution Dfus. The comparsion with experiment proves that the semiclassiacl approach adopted in the present work reproduce the experimental data better that the full quantal mechanical calcautions. 

Adiabatic and coupled channels calculations for near barrier fusion of 16O +238U using realistic nucleon–nucleon interaction

2016 ◽  
Vol 25 (04) ◽  
pp. 1650026 ◽  
Author(s):  
M. Ismail ◽  
W. M. Seif ◽  
M. M. Botros
Keyword(s):  
Cross Section ◽  
Degrees Of Freedom ◽  
Fusion Cross Section ◽  
Nucleon Nucleon ◽  
Distribution Profile ◽  
Fusion Barrier ◽  
Coupled Channels ◽  
Barrier Distribution ◽  
Fusion Barrier Distribution ◽  
Double Folding

We investigate the fusion cross-section and the fusion barrier distribution of [Formula: see text]O[Formula: see text]U at near- and sub-barrier energies. We use an interaction potential generated by the semi-microscopic double folding model-based on density dependent (DD) form of the realistic Michigan-three-Yukawa (M3Y) Reid nucleon–nucleon (NN) interaction. We studied the role of both the static and dynamic deformations of the target nucleus on the fusion process. Rotational and vibrational degrees of freedom of [Formula: see text]U-nucleus are considered. We found that the deformation and the octupole vibrations in [Formula: see text]U enhance its sub-barrier fusion cross-section. The signature of the the octupole vibrational modes of [Formula: see text]U appears clearly in its fusion barrier distribution profile.

Effect of β 6 Deformation Parameter on Fusion Cross-Section and Barrier Distribution

2004 ◽  
Vol 21 (1) ◽  
pp. 27-38 ◽  
Author(s):  
M. Ismail ◽  
M.M. Osman ◽  
H. El Gebaly ◽  
H. Abou-Shady
Keyword(s):  
Cross Section ◽  
Deformation Parameter ◽  
Fusion Cross Section ◽  
Barrier Distribution

MICROSCOPIC STUDY OF THE EFFECT OF HEXADECAPOLE DEFORMATION ON BOTH FUSION CROSS-SECTION AND BARRIER DISTRIBUTION

2000 ◽  
Vol 15 (38n39) ◽  
pp. 2315-2326 ◽  
Author(s):  
M. ISMAIL ◽  
A. SH. GHAZAL
Keyword(s):  
Cross Section ◽  
Fusion Cross Section ◽  
Heavy Ion ◽  
Nucleon Nucleon ◽  
Finite Range ◽  
Zero Range ◽  
Barrier Distribution ◽  
Nucleon Nucleon Interaction ◽  
The Difference ◽  
Double Folding

The interaction potential for deformed-spherical nuclear pair is derived microscopically in the framework of double folding model with M3Y-Paris nucleon–nucleon interaction. The heavy target nucleus 238 U together with the light projectile nucleus 16 O are considered as an example. The exchange part of the heavy ion (HI) potential has been calculated using finite-range exchange NN force instead of the zero-range pseudoforce. Neutron thickness and the difference in kinetic energy densities between neutrons and protons have been taken into consideration in calculating the exchange HI potential. For this pair the fusion cross-section as well as the barrier distribution are calculated. These calculations have been done using three different values of hexadecapole deformation parameter of 238 U . The effect of using both the finite-range exchange NN force and the hexadecapole deformation on the fusion cross-section and the barrier distribution have been discussed.

IMPORTANCE OF DEFORMATION AND ORIENTATION OF NUCLEAR SHAPES FOR THE SYNTHESIS OF SUPER-HEAVY ELEMENTS

2004 ◽  
Vol 13 (01) ◽  
pp. 361-366 ◽  
Author(s):  
M. KOWAL ◽  
Z. ŁOJEWSKI
Keyword(s):  
Potential Energy ◽  
Cross Section ◽  
Heavy Ion Collisions ◽  
Fusion Cross Section ◽  
Heavy Ion ◽  
Heavy Elements ◽  
Axially Symmetric ◽  
Deformation Degree ◽  
Fusion Barrier ◽  
Ion Collisions

We are studying the potential energy describing the entrance channel of a heavy-ion collisions for the axially symmetric deformed and arbitrarily oriented nuclear shapes. The paper presents an analysis of the influence of different orientations of the deformed ions on the height and shape of the fusion barrier. The net effect of the deformation degree of freedom on the transmission at sub-barrier energies is to enhance the fusion cross section. This problem is very important especially in the perspective of the synthesis of super-heavy elements.

Elastic nucleon-nucleon cross section in nuclear matter at finite temperature

1998 ◽  
Vol 57 (2) ◽  
pp. 806-810 ◽  
Author(s):  
A. Schnell ◽  
G. Röpke ◽  
U. Lombardo ◽  
H.-J. Schulze
Keyword(s):  
Nuclear Matter ◽  
Cross Section ◽  
Finite Temperature ◽  
Nucleon Nucleon
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