Translational energy spectroscopy of single-electron capture by C 2+ ions in He, Ne and Ar

Abstract

High resolution (0.3 eV at FWHM) translational energy spectroscopy has been employed to study single-electron capture by 4 keV C 2+ ions in collision with He, Ne and Ar atoms. Our results are generally in good agreement with previous measurements. Our spectra reveal an additional weak channel for C 2+ in He and two additional weak channels for C 2+ in Ne, not previously reported. One of these capture channels in Ne occurs at a relatively large endothermic energy change. Eight transitions are identified for the single-electron capture by C 2+ in Ar.