Single-electron capture from hydrogenlike atomic systems

R. Samanta*, S. Jana, C. R. Mandal, M. Purkait

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The total cross sections for single-charge transfer in H + H, He + + H, He + + He +, and Li2 + + H collisions have been calculated in the framework of four-body (4B) formalism of boundary corrected continuum intermediate state (BCCIS) approximation in the energy range 20-5000 keV/amu. The dynamic electron correlation is explicitly taken into account through the complete perturbation potentials. In the initial channel, the passive electron plays the role of screening of the projectile ion. However, continuum states of the target ion and the electron in the field of the residual projectile ion are included. In all cases, total single-electron capture cross sections have been calculated by summing over all contributions up to n = 2 shells and subshells, respectively, except the H-H collision. The present computed results, both in prior and post forms of BCCIS-4B method for symmetric and asymmetric cases have been compared with the available theoretical and experimental results. We found that our computed results, particularly in the prior form, are in better agreement with the experimental observations in comparison to other theoretical findings. Post-prior discrepancy has been found to be within 20% above 70 keV/amu for all interactions.

Original languageEnglish
Article number032714
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - 30 Mar 2012
Externally publishedYes


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