Study of elastic and inelastic pion-nucleus scattering using the microscopic model of optical potential

2015 ◽  
Vol 24 (05) ◽  
pp. 1550035 ◽  
Author(s):  
V. K. Lukyanov ◽  
E. V. Zemlyanaya ◽  
K. V. Lukyanov ◽  
A. Y. Ellithi ◽  
I. A. M. Abdul-Magead
Keyword(s):  
Cross Sections ◽  
Degrees Of Freedom ◽  
Optical Potential ◽  
Scattering Amplitude ◽  
Relativistic Effects ◽  
Relativistic Wave Equation ◽  
Pion Scattering ◽  
Pion Nucleon ◽  
Nucleus Scattering ◽  
Microscopic Optical Potential

The pion-nucleus microscopic optical potential (OP), defined by the pion-nucleon scattering amplitude and by the generalized density distribution of a target nucleus that incudes internal degrees of freedom, is applied to construct the pion-nucleus differential cross-sections of elastic and inelastic scattering on the nuclei 28 Si , 58 Ni , 208 Pb at T lab = 291 MeV. Calculations are based on the relativistic wave equation and thus relativistic effects and distortions on the relative motion wave functions are taken into account. The respective experimental data are analyzed and the in-medium parameters of the elementary πN-amplitude are established and compared with those from the pion scattering on free nucleons.

CALCULATION OF THE 11LI + P ELASTIC SCATTERING CROSS SECTIONS USING THE FOLDING OPTICAL POTENTIAL

2019 ◽  
pp. 3-5
Author(s):  
M.B. Kakenov ◽  
E.V. Zemlyanaya
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Information Technologies ◽  
Optical Potential ◽  
Heterogeneous Cluster ◽  
Folding Potential ◽  
Nucleus Scattering ◽  
Mpi Implementation ◽  
Microscopic Optical Potential ◽  
Scattering Cross Sections

The MPI implementation of the calculation of the microscopic optical potential of nucleon-nucleus scattering within the single folding model has been developed. The folding potential and the corresponding differential cross section of the 11Li + p elastic scattering have been calculated at 62 MeV/nucleon on the heterogeneous cluster "HybriLIT" of the Multifunctional Information and Computational Complex (MICC) of the Laboratory of Information Technologies of JINR. The agreement between experimental data and numerical results for various models of the 11Li density distribution used in the construction of the folding potential is demonstrated

scholarly journals Microscopic model of optical potential for testing the 12,14Be+p elastic scattering at 700 Mev

2019 ◽  
Vol 204 ◽  
pp. 09003 ◽  
Author(s):  
Valery Lukyanov ◽  
Elena Zemlyanaya ◽  
Konstantin Lukyanov
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Optical Potential ◽  
Relativistic Wave Equation ◽  
Relativistic Wave ◽  
Generator Coordinate Method ◽  
Generator Coordinate ◽  
Microscopic Models ◽  
Fermi Function ◽  
Scattering Cross Sections

The data on the 12,14Be + p elastic scattering cross sections at 700 Mev are compared with those obtained by solving the relativistic wave equation with the microscopic optical potentials calculated as folding of the NN amplitude of scattering with densities of these nuclei in the form of the symmetrized Fermi function with the fitted radius and diffuseness parameters, and also with the densities obtained in two microscopic models, based on the Generator Coordinate Method (GCM) and the other one – on the Variational Method of Calculations (VMC). For 12Be, above models turn out to be in a small disagreement with the data at "large" angles of scattering θ ≥ 9°, while for the 14Be one sees some inconsistence at smaller angles, too.

The proton microscopic optical potential based on Skyrme interaction

2018 ◽  
Vol 27 (03) ◽  
pp. 1850023
Author(s):  
Yongli Xu ◽  
Yinlu Han ◽  
Qingbiao Shen
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Optical Potential ◽  
Local Density ◽  
Mass Range ◽  
Reaction Cross ◽  
Light Nuclei ◽  
Skyrme Interaction ◽  
The Green Function ◽  
Microscopic Optical Potential

The proton microscopic optical potential (MOP) based on Skyrme interaction has been achieved by the Green function method in the nuclear matter, and given by the local density approximation (LDA) for finite nuclei. The reaction cross-sections, elastic scattering angular distributions, analyzing powers, and spin-rotation functions are predicted by the obtained proton MOP with Skyrme interaction SkC in the mass range of target nuclei 24[Formula: see text][Formula: see text][Formula: see text]A[Formula: see text][Formula: see text][Formula: see text]209 with incident proton energy below 100[Formula: see text]MeV. These observables are further predicted for some light nuclei and actinide nuclei below 100[Formula: see text]MeV. The prediction is compared with existing experimental data. It is revealed that the obtained proton MOP based on Skyrme interaction SkC can satisfactorily describe the proton–nucleus elastic scattering.

scholarly journals Calculations ofHe8+pelastic cross sections using a microscopic optical potential

2009 ◽  
Vol 80 (2) ◽  
Author(s):  
V. K. Lukyanov ◽  
E. V. Zemlyanaya ◽  
K. V. Lukyanov ◽  
D. N. Kadrev ◽  
A. N. Antonov ◽  
...  
Keyword(s):  
Cross Sections ◽  
Optical Potential ◽  
Microscopic Optical Potential

scholarly journals Microscopic optical potential with two and three body forces for nucleon–nucleus scattering

2014 ◽  
Vol 66 ◽  
pp. 02038
Author(s):  
Y.K. Gambhir ◽  
M. Gupta ◽  
A. Bhagwat ◽  
W. Haider ◽  
Sayed Rafi ◽  
...  
Keyword(s):  
Optical Potential ◽  
Body Forces ◽  
Nucleus Scattering ◽  
Three Body ◽  
Microscopic Optical Potential

The neutron microscopic optical potential based on skyrme interaction

2016 ◽  
Vol 25 (02) ◽  
pp. 1650013 ◽  
Author(s):  
Yong-Li Xu ◽  
Hai-Rui Guo ◽  
Yin-Lu Han ◽  
Qing-Biao Shen
Keyword(s):  
Cross Sections ◽  
Optical Potential ◽  
Local Density ◽  
Mass Range ◽  
Light Nuclei ◽  
Skyrme Interaction ◽  
Analyzing Powers ◽  
The Green Function ◽  
Finite Nuclei ◽  
Microscopic Optical Potential

The neutron microscopic optical potential (MOP) based on Skyrme interaction has been achieved by the Green function method in the nuclear matter, and given by the local density approximation (LDA) for finite nuclei. The total cross-sections, nonelastic cross-sections, elastic scattering angular distributions and analyzing powers are predicted for some light nuclei and actinide nuclei below 100[Formula: see text]MeV by the obtained neutron MOP with the Skyrme interaction SkC. These data are also predicted for targets in the mass range of [Formula: see text] which are too deformed and have rich nuclear structure properties. All of the theoretical results give reasonable agreements with the corresponding experimental data.

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