scholarly journals Electron scattering from aluminum: B-spline R-matrix calculations

2015 ◽  
Vol 635 (5) ◽  
pp. 052012
Author(s):  
Oleg Zatsarinny ◽  
Klaus Bartschat ◽  
Elizabeth Nagy ◽  
Sergey Gedeon ◽  
Viktor Gedeon ◽  
...  
Keyword(s):  
Electron Scattering ◽  
R Matrix ◽  
B Spline

scholarly journals Relativistic B-Spline R-Matrix Calculations for Electron Collisions with Ytterbium

Atoms ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 47
Author(s):  
Kathryn R. Hamilton ◽  
Klaus Bartschat ◽  
Oleg Zatsarinny
Keyword(s):  
Experimental Data ◽  
Electron Scattering ◽  
Cross Sections ◽  
Matrix Method ◽  
Model Potential ◽  
Electron Collisions ◽  
R Matrix ◽  
B Spline ◽  
Potential Approach

We have applied the full-relativistic Dirac B-Spline R-matrix method to obtain cross sections for electron scattering from ytterbium atoms. The results are compared with those obtained from a semi-relativistic (Breit-Pauli) model-potential approach and the few available experimental data.

scholarly journals Low-Energy Elastic Electron Scattering from Helium Atoms

Atoms ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 82
Author(s):  
Robert P. McEachran ◽  
Kathryn R. Hamilton ◽  
Klaus Bartschat
Keyword(s):  
Elastic Scattering ◽  
Electron Scattering ◽  
General Purpose ◽  
Orbital Method ◽  
Elastic Electron Scattering ◽  
Close Coupling ◽  
R Matrix ◽  
B Spline ◽  
Helium Atoms ◽  
Atom Collision

We reinvestigate a key process in electron-atom collision physics, the elastic scattering of electrons from helium atoms. Specifically, results from a special-purpose relativistic polarized-orbital method, which is designed to treat elastic scattering only, are compared with those from a very extensive, fully ab initio, general-purpose B-spline R-matrix (close-coupling) code.

scholarly journals Benchmark Angle-Differential Cross-Section Ratios for Excitation of the 4p5s Configuration in Krypton

Atoms ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 61
Author(s):  
Ahmad Sakaamini ◽  
Jean-Baptiste Faure ◽  
Murtadha A. Khakoo ◽  
Oleg I. Zatsarinny ◽  
Klaus Bartschat
Keyword(s):  
Experimental Data ◽  
Differential Cross Section ◽  
Cross Section ◽  
Electron Scattering ◽  
Spin Exchange ◽  
Electronic Excitations ◽  
Close Coupling ◽  
R Matrix ◽  
B Spline

Benchmark intensity ratio measurements of the energy loss lines of krypton for excitation of the 4p61S0→4p55s[3/2]2, 4p55s[3/2]1, 4p55s′[1/2]0, and 4p55s′[1/2]1 transitions are reported, these being the lowest electronic excitations for krypton. The importance of these ratios as stringent tests of theoretical electron scattering models for the noble gases is discussed, as well as the role of spin-exchange and direct processes regarding the angular dependence of these ratios. The experimental data are compared with predictions from fully-relativistic B-spline R-matrix (close-coupling) calculations.

scholarly journals Relativistic B-Spline R-Matrix Calculations for Electron Scattering from Thallium Atoms

Atoms ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 94
Author(s):  
Yang Wang ◽  
Hai-Liang Du ◽  
Xi-Ming Zhu ◽  
Oleg Zatsarinny ◽  
Klaus Bartschat
Keyword(s):  
Electron Scattering ◽  
Spin Asymmetry ◽  
Electron Collisions ◽  
R Matrix ◽  
B Spline ◽  
Asymmetry Function ◽  
Low Energy Electron ◽  
Impact Energies ◽  
The Impact ◽  
Good Agreement

The Dirac B-spline R-matrix (DBSR) method is employed to treat low-energy electron collisions with thallium atoms. Special emphasis is placed on spin polarization phenomena that are investigated through calculations of the differential cross-section and the spin asymmetry function. Overall, good agreement between the present calculations and the available experimental measurements is found. The contributions of electron exchange to the spin asymmetry cannot be ignored at low impact energies, while the spin–orbit interaction plays an increasingly significant role as the impact energy rises.

Electron scattering from germanium tetrafluoride

RSC Advances ◽  
2014 ◽  
Vol 4 (109) ◽  
pp. 63817-63823 ◽  
Author(s):  
Biplab Goswami ◽  
Rahla Naghma ◽  
Bobby Antony
Keyword(s):  
Momentum Transfer ◽  
Electron Scattering ◽  
Cross Sections ◽  
Differential Cross ◽  
Shape Resonance ◽  
Differential Cross Sections ◽  
Rotational Excitation ◽  
R Matrix ◽  
High Energies ◽  
Germanium Tetrafluoride

R-matrix and SCOP methods are used at low and high energies respectively to find e-GeF4 TCS. Electronic and rotational excitation, momentum transfer and elastic differential cross sections are also calculated. A shape resonance is observed at 5.7 eV.

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