Double-electron capture from helium by ions of helium, lithium, carbon, and oxygen
- 1 June 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 35 (12) , 5259-5261
- https://doi.org/10.1103/physreva.35.5259
Abstract
Cross sections for double-electron capture from helium atoms by fully stripped ions of lithium, carbon, and oxygen are calculated in the framework of the continuum distorted-wave (CDW) and continuum intermediate-state (CIS) approximations in the energy range of 0.125–2.5 MeV/amu. Cross sections are also calculated for α particles as the projectile in the CIS approximation. The results are compared with existing experimental findings. The present calculated results for symmetric and near-symmetric cases show good agreement with the experimental findings. The discrepancies between the calculated and observed values for the asymmetric cases are discussed.Keywords
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