scholarly journals Double-Folding Nucleus-Nucleus Optical Potential: Parallel MPI and OpenMP Implementations

2020 ◽  
Vol 226 ◽  
pp. 02004
Author(s):  
Maxim Bashashin ◽  
Elena Zemlyanaya ◽  
Konstantin Lukyanov

The computation of the real part of the nucleus-nucleus optical potential based on the microscopic double-folding model was implemented within both the MPI and OpenMP parallelising techniques. Test calculations of the total cross section of the 6He + 28Si scattering at the energy 50 A MeV show that both techniques provide significant comparable speedup of the calculations.

2016 ◽  
Vol 94 (3) ◽  
Author(s):  
Dao T. Khoa ◽  
Nguyen Hoang Phuc ◽  
Doan Thi Loan ◽  
Bui Minh Loc

2016 ◽  
Vol 71 (11) ◽  
pp. 979-984 ◽  
Author(s):  
Fatemeh Pakdel ◽  
Ali Akbar Rajabi

AbstractThe current study presents the results of the use of the wave function of a nucleus in place of the nucleus density distribution to calculate the nucleus-nucleus interaction potential. The wave function is obtained by solving the D-dimensional wave equation using the hyperspherical formalism. The interaction potential between two nuclei is calculated using the double folding model. The numerical results for the interaction potential and the scattering cross section are presented to evaluate the formalism used to calculate the nucleus wave function.


2014 ◽  
Vol 23 (4) ◽  
pp. 339
Author(s):  
Ngo Ha Tan ◽  
Nguyen Hoang Phuc ◽  
Dao Tien Khoa

The folding model analysis of the elastic \(\alpha + \alpha\) scattering at the incident energies below the reaction threshold of 34.7 MeV (in the lab system) has been done using the well-tested density dependent versions of the M3Y interaction and realistic choices for the \(^4\)He density. Because the absorption is negligible at the energies below the reaction threshold, we were able to probe the \(\alpha + \alpha\) optical potential at low energies quite unambiguously and found that the α + α overlap density used to construct the density dependence of the M3Y interaction is strongly distorted by the Pauli blocking. This result gives possible explanation of a long-standing inconsistency of the double-folding model in its study of the elastic \(\alpha + \alpha\) and \(\alpha\)-nucleus scattering at low energies using the same realistic density dependent M3Y interaction.


2002 ◽  
Vol 11 (05) ◽  
pp. 437-444 ◽  
Author(s):  
N. A. El-NOHY ◽  
F. A. EL-AKKAD ◽  
A. M. ABDEL-MONEM ◽  
O. S. ABDEL-FATTAH

A double folding potential has been used to calculate the real part of optical potential of 6 Li scattering by 12 C , 40 Ca , 90 Zr and 208Pb. In this model the effective nucleon-nucleon interaction potential has been developed to include an energy and density dependent in a simple form. The real part of the optical potential calculated by the double folding model is then reduced to an equivalent Wood–Saxon form using a fitting program. The obtained Wood–Saxon potentials have been used to calculate the differential cross sections for elastic scattering of 6 Li nucleus by 12 C , 40 Ca , 90 Zr and 208 Pb . This method gives satisfactory agreement of the calculated differential scattering cross section with the corresponding experimental values.


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