elsepa—Dirac partial-wave calculation of elastic scattering of electrons and positrons by atoms, positive ions and molecules (New Version Announcement)

2020 ◽  
pp. 107704
Author(s):  
Francesc Salvat ◽  
Aleksander Jablonski ◽  
Cedric J. Powell

A simplification of the second Born approximation due to Massey & Mohr is used to calculate the differential cross-sections for the elastic scattering of fast electrons and fast positrons by hydrogen atoms and helium atoms, the method of Dalitz being applied to evaluate all the relevant integrals. Although the logarithmic singularity which is found in the differential cross-section for zero-angle scattering is shown to be absent in the true second Born approximation the use of the simplification of this approximation is justified at sufficiently high impact energies provided the angle of scattering is not too small. The results of the calculations for incident electrons in helium are compared with the available experimental data.


1993 ◽  
Vol 48 (3) ◽  
pp. 465-468
Author(s):  
V. M. Chhaya ◽  
J. J. Tarwadi ◽  
Smita Chhag

Abstract The unitarised Eikonal Born series (UEBS) method has been used successfully by Byron et al. for elastic scattering of electrons and positrons by hydrogen atoms. Here an attempt is made to apply the UEBS method in the case of elastic scattering of electrons by helium atoms. The total and differential cross sections are calculated for the energy range 100-700 eV. The results are compared with experimental and other theoretical results. It is found that the results obtained with the UEBS method agree best with the experimental results.


1989 ◽  
Vol 80 (1) ◽  
pp. 17-26
Author(s):  
Kenji Ishibashi ◽  
Yuki Miura ◽  
Hiroshi Takada ◽  
Takeji Sakae ◽  
Yuzuru Matsumoto ◽  
...  

1992 ◽  
Vol 71 (1) ◽  
pp. 11-14 ◽  
Author(s):  
N. Öztürk ◽  
W. Williamson ◽  
A. J. Antolak

1990 ◽  
Vol 42 (5) ◽  
pp. 2696-2702 ◽  
Author(s):  
K. C. Mathur ◽  
S. P. Purohit

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