scholarly journals The behavior of reaction cross-section at low and intermediate energies by considering in-medium effects in σNN for light and heavy target nuclei

2010 ◽  
Vol 7 (1) ◽  
pp. 145-151
Author(s):  
H. El-Gebaly
Keyword(s):  
Simple Model ◽  
Cross Section ◽  
Target Nucleus ◽  
Reaction Cross Section ◽  
Incident Energy ◽  
Nucleon Nucleon ◽  
Reaction Cross ◽  
Medium Effects ◽  
Heavy Target ◽  
Intermediate Energies

The in-medium effects in nucleon-nucleon cross-section were treated using different approaches. We study the variation of σR with different values of rms. Also we study the variation of sR with different values of incident energy per projectile nucleon for light interacting pair 12C-12C and heavy target nucleus pair12C-208Pb. The coulombs repulsion was taken into consideration by assuming a simple model. We found that the in-medium effects on σR are small when the target nucleus becomes heavy.

ORIENTATION AND DEFORMATION DEPENDENCE OF THE REACTION CROSS-SECTION FOR A DEFORMED TARGET NUCLEUS

2003 ◽  
Vol 18 (01) ◽  
pp. 57-64 ◽  
Author(s):  
M. ISMAIL ◽  
M. M. OSMAN ◽  
H. EL GEBALY ◽  
H. ABOU-SHADY
Keyword(s):  
Cross Section ◽  
Target Nucleus ◽  
Reaction Cross Section ◽  
Geometrical Model ◽  
Orientation Dependence ◽  
Reaction Cross ◽  
Glauber Theory ◽  
Deformation Dependence ◽  
Optical Limit ◽  
Optical Limit Approximation

The optical limit approximation to Glauber theory was used to calculate the reaction cross-section, σR, for a deformed target nucleus. A method is presented to include both density dependence of NN reaction cross-section and higher order deformations of the target nucleus. We studied orientation, energy and deformation dependence of σR for C 12– N 17 and C 12– U 238 interacting pairs. We found that the orientation dependence of σR for the heavy target U 238 depends on the value and sign of hexadecapole deformation and it is more than 2.2 times compared to the light deformed target nucleus N 17. The presence of hexadecapole deformation does not affect the value of σR averaged over all orientation of the target nucleus. A geometrical model was proposed to account for the orientation dependence of σR. We found that the error in this model is less than 10%.

The effect of level density and reaction mechanisms on the reaction cross-section calculations at intermediate energies

1999 ◽  
Vol 112 (7) ◽  
pp. 743-760 ◽  
Author(s):  
V. P. Lunev ◽  
Yu. N. Shubin ◽  
C. Grandi ◽  
B. Poli ◽  
A. Ventura
Keyword(s):  
Cross Section ◽  
Reaction Mechanisms ◽  
Reaction Cross Section ◽  
Level Density ◽  
Reaction Cross ◽  
Intermediate Energies

Measurement of reaction cross section for proton-rich nuclei (A<30) at intermediate energies

2002 ◽  
Vol 707 (3-4) ◽  
pp. 303-324 ◽  
Author(s):  
H.Y. Zhang ◽  
W.Q. Shen ◽  
Z.Z. Ren ◽  
Y.G. Ma ◽  
W.Z. Jiang ◽  
...  
Keyword(s):  
Cross Section ◽  
Reaction Cross Section ◽  
Reaction Cross ◽  
Intermediate Energies

In-medium nucleon-nucleon cross section and its effect on total nuclear reaction cross section

1998 ◽  
Vol 58 (1) ◽  
pp. 572-575 ◽  
Author(s):  
Cai Xiangzhou ◽  
Feng Jun ◽  
Shen Wenqing ◽  
Ma Yugang ◽  
Wang Jiansong ◽  
...  
Keyword(s):  
Nuclear Reaction ◽  
Cross Section ◽  
Reaction Cross Section ◽  
Nucleon Nucleon ◽  
Reaction Cross
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