Infinite-Channel Close-Coupling Theory in the Second Born Approximation. I. Charge Polarization in the Elastic Electron Scattering from H and He

1971 ◽  
Vol 3 (1) ◽  
pp. 298-309 ◽  
Author(s):  
R. A. Bonham
Keyword(s):  
Electron Scattering ◽  
Born Approximation ◽  
Elastic Electron ◽  
Coupling Theory ◽  
Elastic Electron Scattering ◽  
Close Coupling ◽  
Charge Polarization

Charge Radii of 20, 22Ne Determined from Elastic Electron Scattering

1971 ◽  
Vol 49 (11) ◽  
pp. 1434-1436 ◽  
Author(s):  
J. R. Moreira ◽  
R. P. Singhal ◽  
H. S. Caplan
Keyword(s):  
Elastic Scattering ◽  
Phase Shift ◽  
Electron Scattering ◽  
Ground State ◽  
Born Approximation ◽  
Phase Shift Analysis ◽  
Elastic Electron ◽  
Elastic Electron Scattering ◽  
Charge Radii ◽  
Shift Analysis

The charge radii of 20, 22Ne have been measured by elastic scattering of electrons. The data have been analyzed in the first Born approximation as well as with a phase shift analysis. The results obtained are R(22Ne)/R(20Ne) = 0.976 ± 0.010. This anomaly is shown to be consistent with ground state deformations in 20, 22Ne.

Elastic electron scattering with CH2Br2 and CCl2Br2: The role of the polarization effects

2021 ◽  
Author(s):  
Xiaoli Zhao ◽  
Kedong Wang
Keyword(s):  
Electron Scattering ◽  
Cross Sections ◽  
Substantial Effect ◽  
Elastic Electron ◽  
Elastic Electron Scattering ◽  
Close Coupling ◽  
Polarization Effects ◽  
Impact Energies ◽  
Scattering Cross Sections

Abstract We present elastic electron scattering cross sections with holmethane molecules CH2Br2 and CCl2Br2 in the low energy region ranging from 0.01 to 20 eV. The calculations are performed with R-matrix method in static-exchange plus polarization (SEP) and close-coupling (CC) approximations. The integral, differential, and momentum transfer cross sections are calculated. The convergence of the obtained cross sections is checked at four different levels of SEP approximation. The predicted positions of the resonances agree well with available results. The precise resonance parameters are found to be sensitive to the treatment of polarization effects employed. We found that the polarization has a substantial effect on the cross sections, and this effect becomes even more important for lower impact energies.

scholarly journals Measurement of the beam-normal single-spin asymmetry for elastic electron scattering from C12 and Al27

2021 ◽  
Vol 104 (1) ◽  
Author(s):  
D. Androić ◽  
D. S. Armstrong ◽  
A. Asaturyan ◽  
K. Bartlett ◽  
R. S. Beminiwattha ◽  
...  
Keyword(s):  
Electron Scattering ◽  
Spin Asymmetry ◽  
Single Spin Asymmetry ◽  
Elastic Electron ◽  
Elastic Electron Scattering ◽  
Single Spin

Calculation of charge form factor of elastic electron scattering based on Skyrme force and relativistic eikonal approximation

2019 ◽  
Vol 28 (03) ◽  
pp. 1950015
Author(s):  
Xiaoyong Guo ◽  
Zaijun Wang ◽  
Tianjing Li ◽  
Jian Liu
Keyword(s):  
Electron Scattering ◽  
Mean Field ◽  
Form Factors ◽  
Eikonal Approximation ◽  
Skyrme Force ◽  
Elastic Electron ◽  
Elastic Electron Scattering ◽  
Charge Form ◽  
Relativistic Treatment ◽  
Rmf Model

We construct a scheme to calculate the charge form factors for the elastic electron scattering. Our calculation is based on the relativistic eikonal approximation and the Skyrme–Hartree–Fock equation. To perform our calculation and benchmark the results, eight model nuclei with available experimental data: [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], and [Formula: see text] are considered. For the comparison, the charge form factors calculated by the relativistic mean-field (RMF) model are also provided. Parameter set SLy5 is utilized for the Skyrme force, and the set NL3 is applied for the RMF model. It has been confirmed that combining of a nonrelativistic treatment for the target nucleus with a relativistic treatment for the incident electron may work better to reach highly descriptive and predictive results similar to the pure relativistic treatment. The results of this work are also useful for future experiments to test different inputs of densities for a specific nucleus.

scholarly journals A study of the critical minima and spin polarization in the elastic electron scattering by the lead atom

2018 ◽  
Vol 2 (12) ◽  
pp. 125013 ◽  
Author(s):  
A K F Haque ◽  
M M Haque ◽  
M Sohag Hossain ◽  
M Ismail Hossain ◽  
M Atiqur R Patoary ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Electron Scattering ◽  
Elastic Electron ◽  
Lead Atom ◽  
Elastic Electron Scattering
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