Projectile electron loss with a molecular hydrogen target
- 1 June 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 43 (11) , 5907-5918
- https://doi.org/10.1103/physreva.43.5907
Abstract
We examine the effect of a molecular hydrogen target, as contrasted with an atomic target, on one-electron-projectile electron loss within the framework of the plane-wave Born approximation. Two different approaches are explored: (1) the use of an approximate molecular wave function due to Weinbaum, and (2) the use of a modified form factor for the two atoms in the molecule. The resulting cross-section expressions are compared with experimental cross sections for electron loss by various one-electron projectiles. We find that for a projectile atomic number larger than 5, molecular effects are negligible in total cross sections and then the electron-loss cross section per molecule is just equal to twice the total cross section per atom.
Keywords
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