Elastic electron-hydrogen scattering in a modified approach to the Glauber approximation
- 1 February 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 21 (2) , 556-563
- https://doi.org/10.1103/physreva.21.556
Abstract
Recently a modified Glauber theory was proposed by one of the authors (S.R.). In this theory a finite value of the mean excitation energy of the atom in its intermediate states is retained in each order (except the first) of the Glauber series, in a consistent way. In the present paper this theory is examined by analyzing the elastic electron-hydrogen scattering at 50, 100, and 200 eV. The excitation energy is determined by the total cross section, and turns out to be essentially independent of the energy of the incident particle. The exchange effect has been taken into account by making use of the Glauber exchange formulas of Forster and Williamson. The agreement of the theoretical results with the experimental data is very good. The proof of the unitarity of the modified Glauber amplitude is also given.Keywords
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