scholarly journals Study of (p,n) Reaction in a Wide Energy Range

2019 ◽  
pp. 1-18
Author(s):  
N. A. El-Nohy ◽  
M. N. El-Hammamy ◽  
S. Diab ◽  
A. M. El-Shinawy
Keyword(s):  
Elastic Scattering ◽  
Optical Model ◽  
Energy Levels ◽  
Model Potential ◽  
Wide Energy Range ◽  
Microscopic Approach ◽  
Density Dependent ◽  
Wide Range ◽  
Optical Model Potential ◽  
Wide Energy

In this paper, the quasi-elastic scattering (p, n) reactions are studied for a wide range of target nuclei 13C, 14C, 48Ca, 90Zr and 208Pb and different incident energies (35-160 MeV). The phenomenological Optical model potential and density independent approaches are used for these calculations in comparison with density dependent semi-microscopic approach. The density dependent parameters are modified to achieve the best calculations for many targets at different energy levels.

scholarly journals A comprehensive description of elastic scattering angular distributions for eight different density distribution of 32S nucleus

2020 ◽  
Vol 66 (3 May-Jun) ◽  
pp. 336
Author(s):  
T. Ulucay ◽  
M. Aygun
Keyword(s):  
Elastic Scattering ◽  
Optical Model ◽  
Model Potential ◽  
Angular Distributions ◽  
Folding Model ◽  
Density Distributions ◽  
Double Folding Model ◽  
Optical Model Potential ◽  
Wide Energy ◽  
Double Folding

The elastic scattering angular distributions of 32S projectile by 12C, 27Al, 40Ca, 48Ca, 48Ti, 58Ni, 63Cu, 64Ni, 76Ge, 96Mo and 100Mo targets over the energy range 83.3 - 180 MeV are analyzed in the framework of the double folding model based on the optical model. The real part of the optical model potential is obtained by using double folding model for eight different density distributions of 32S which consist of Ngo, SP, 2pF, G1, G2, S, 3pF, and HFB. The imaginary part of the optical model potential is accepted as the Woods-Saxon (WS) potential. The theoretical results successfully reproduce the experimental data over both a wide energy and a wide target nucleus. Finally, simple and useful formulas which predict imaginary potential depths of each density are derived based on the elastic scattering results.

scholarly journals The Optical Model and Proton Elastic Scattering from 14N and 16O

1977 ◽  
Vol 30 (3) ◽  
pp. 287 ◽  
Author(s):  
A Gabric ◽  
K Amos
Keyword(s):  
Elastic Scattering ◽  
Optical Model ◽  
Model Potential ◽  
Light Nuclei ◽  
Projectile Energy ◽  
Strength Parameters ◽  
Proton Elastic Scattering ◽  
Doorway State ◽  
Optical Model Potential

Allowing for important doorway state effects in analyses of proton elastic scattering from the light nuclei 14N and 160 enables an average geometry optical model potential to be determined, the strength parameters of which show a smooth behaviour with projectile energy.

Applicability of the systematic helium-3 potential for triton-nucleus reactions

2015 ◽  
Vol 24 (01) ◽  
pp. 1550005 ◽  
Author(s):  
Yong-Li Xu ◽  
Hai-Rui Guo ◽  
Yin-Lu Han ◽  
Qing-Biao Shen
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Optical Model ◽  
Model Potential ◽  
Reaction Cross ◽  
Angular Distributions ◽  
Optical Model Potential ◽  
Helium 3 ◽  
Reasonable Description ◽  
Potential Parameters

The elastic scattering angular distributions of triton are calculated by the obtained systematic helium-3 global optical model potential parameters and compared with the available experimental data. These results show that the present global optical model potential can give a reasonable description of the elastic scattering of triton. The total reaction cross-sections of triton as a function of energy per nucleon are also further investigated and the reasonable results are presented.

Role of inelastic couplings in the 4He + 208Pb elastic scattering in a wide energy range

2021 ◽  
Author(s):  
Luiz Carlos Chamon ◽  
Leandro Romero Gasques ◽  
Juan Carlos Zamora Cardona
Keyword(s):  
Elastic Scattering ◽  
Energy Range ◽  
Energy Dependence ◽  
Cross Sections ◽  
Optical Model ◽  
Nucleon Nucleon ◽  
Scattering Data ◽  
Wide Energy Range ◽  
Data Analyses ◽  
Wide Energy

Abstract The phenomenological strengths of the real part of the optical potential, obtained from elastic scattering data analyses within the optical model approach, present significant energy-dependence. This behavior has been associated to the intrinsic energy-dependence of the effective nucleon-nucleon interaction. However, in earlier works, we proposed that at least part of this dependence can arise from the effect of couplings to inelastic states of the nuclei. In order to deepen this study, in this paper we present extensive data analyses for the elastic scattering and inelastic excitation of 111 states of 208Pb, for the 4He + 208Pb system in a wide energy range. With the purpose of comparison, the theoretical cross sections are obtained in different approaches for the imaginary part of the potential, and within both contexts: optical model (distorted wave Born approximation) and coupled-channel calculations.

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