Reevaluation of electron-capture cross sections inC4++Hcollisions

Abstract

We calculated the total electron-capture cross section for collisions of C{sup 4+} ions with atomic hydrogen in the energy range of 10{endash}2000 eV/nucleon using the close-coupling two-center atomic orbital expansion method. Various basis sets have been used to check the convergence of the calculation and the results are shown to be in general agreement with existing experimental data. However, we found no evidence of a dip in the total electron-capture cross sections near 500 eV/nucleon as reported by Bliek {ital et al.} [Phys. Rev. A {bold 56}, 526 (1997)]. {copyright} {ital 1998} {ital The American Physical Society}