Optical model analysis of p + 4He elastic scattering at intermediate energies

1978 ◽  
Vol 56 (8) ◽  
pp. 1116-1121 ◽  
Author(s):  
S. W-L. Leung ◽  
H. S. Sherif
Keyword(s):  
Elastic Scattering ◽  
Cross Section ◽  
Optical Model ◽  
Model Potential ◽  
Scattering Data ◽  
Exchange Potential ◽  
Central Potential ◽  
Intermediate Energies ◽  
Optical Model Potential ◽  
Optical Model Analysis

The conventional optical model potential is used to analyze the p + 4He elastic scattering data in the energy range 100–1150 MeV. Both differential cross section and polarization data are reasonably fitted. The behavior of the volume integral of the real central potential as a function of energy is studied and is found to follow the same trend observed for heavier targets. The energy dependence of the imaginary central potential is also studied. The imaginary spin–orbit term is found to be important in this energy region. In some cases, the rising backward cross section is fitted by introducing a simple real exchange potential.

Optical-model potentials from potential inversion at fixed energy

1986 ◽  
Vol 64 (6) ◽  
pp. 653-657 ◽  
Author(s):  
R. J. W. Hodgson
Keyword(s):  
Elastic Scattering ◽  
Optical Model ◽  
Model Potential ◽  
Scattering Data ◽  
Inversion Method ◽  
Saxon Potential ◽  
Energy Potential ◽  
Model Potentials ◽  
Fixed Energy ◽  
Optical Model Potential

A fixed-energy potential-inversion method is employed to generate an optical-model potential to fit the elastic-scattering data for 16O + 28Si at 21.1 and 34.8 MeV. The fit yields a potential that is based on a standard Woods–Saxon potential and yields minor modifications to it.

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.

Evaluation of Optical Model Potential Using Neutron Induced Cross Section Reaction for Spherical Uranium-238 Isotope up to 20MeV

2015 ◽  
Vol 59 ◽  
pp. 26-34
Author(s):  
Iman Tarik Al-Alawy ◽  
Ronak Ikram Ali
Keyword(s):  
Experimental Data ◽  
Energy Range ◽  
Cross Section ◽  
Cross Sections ◽  
Optical Model ◽  
Threshold Energy ◽  
Model Potential ◽  
Model Parameters ◽  
Incident Neutron ◽  
Optical Model Potential

The evaluation are based on mainly on the calculations of the nuclear optical model potential and relevant parameters are collected and selected from References Input Parameter Library (RIPL) which is being developed under the international project coordinated by the International Atomic Energy Agency (IAEA). The analyzing of a complete energy range has done starting from threshold energy for each reaction. The cross sections are reproduced in fine steps of incident neutron energy with 0.01MeV intervals with their corresponding errors. The recommended cross sections for available experimental data taken from EXFOR library have been calculated for all the considered neutron induced reactions for U-238 isotopes. The calculated results are analyzed and compared with the experimental data. The optimized optical potential model parameters give a very good agreement with the experimental data over the energy range 0.001-20MeV for neutron induced cross section reactions (n,f), (n,tot), (n,el), (n,inl), (n,2n), (n,3n), and (n,γ) for spherical U-238 target elements.

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