Abstract
Total cross sections for single-electron capture by from the target gases He, Ne, and Ar were measured at laboratory energies between 400 eV and 40 keV. The fast-collision products that scattered less than 1° were charge analyzed after single collision in a gas cell. Experimental results are interpreted in terms of pseudocrossings of the adiabatic potential curves for the initial and final states. The cross sections for + He and + Ne are consistent with the second maximum predicted for distant pseudocrossings by a numerical solution of the two-state semiclassical approximation by Bates, Johnson, and Stewart. Electron capture with an Auger-type ionization of the target is exothermic for + Ne and + Ar and is considered as the explanation of the large (50 ) and slowly varying cross section measured for + Ar.
- Received 27 March 1970
DOI:https://doi.org/10.1103/PhysRevA.2.1851
©1970 American Physical Society