Elastic scattering of electrons and positrons from H and Ar in the second-order eikonal approximation
- 14 August 1978
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 11 (15) , 2729-2734
- https://doi.org/10.1088/0022-3700/11/15/020
Abstract
Wallace's (WSOEA) second-order eikonal approximation is used to calculate elastic differential cross sections for e-or+-H and e-or+-Ar scattering at 100 and 500 eV in the angular range 0-20 degrees . The predictions of the WSOEA are compared with those of the partial-wave calculation (PWC), in addition to the results obtained in the first Born approximation (FBA) and Glauber's first-order eikonal approximation (FOEA). The WOSEA shows a definite improvement upon the FBA and the FOEA and yields cross sections in good agreement with the PWC results.Keywords
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