Elastic Positron Scattering from Krypton and Xenon in the Relativistic Polarized Orbital Approximation
R. Szmytkowski
Institute of Theoretical Physics and Astrophysics, University of Gdańsk, Wita Stwosza 57, 80-952 Gdańsk, Poland
Received: December 27, 1993
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We present results of ab initio relativistic calculations on the elastic positron scattering from Kr and Ye atoms in the energy region below 10 eV. The approach employed was the relativistic polarized orbital approximation in which we tried to keep correctly orders of various contributions to positron-atom interaction potentials. In view of the serious disagreement between the present results and experimental data we conclude that the polarized orbital approximation even in its relativistic version is not able to provide reliable values of positron scattering cross-sections.
DOI: 10.12693/APhysPolA.86.309
PACS numbers: 34.80.Bm, 34.90.+q