Explicit optical model for the-H entrance channel
- 1 January 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 23 (1) , 145-152
- https://doi.org/10.1103/physreva.23.145
Abstract
Differential elastic and total reaction cross sections for electron scattering on hydrogen at 100 eV are obtained in a one-channel calculation using a momentum-space optical potential. Wave functions in reaction space are represented by the extreme screening approximation for the continuum and the Born approximation for discrete excitations. Exchange amplitudes are evaluated throughout. Total cross sections for discrete excitations and ionization are well reproduced by individual parts of the potential. The shape of the elastic angular distribution and the total reaction cross section are within experimental error. The absolute elastic cross sections are 24% below the present experimental determination.Keywords
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