Single Electron Capture in Slow Collisions of Doubly Charged Ions with Dinuclear Molecules

Abstract

Abstract:We have performed translational-spectroscopical measurements on single electron capture (SEC) by impact of slow (impact energy ≤ 1 keV) doubly charged ions on dinuclear molecules. For impact of C 2+ and N 2+ ions the influence of their metastable fractions on the SEC probability has been studied. For impact of 4 He 2+ on O 2 and CO direct and dissociative SEC have been investigated. For all collision systems studied the principal SEC channels can be explained by the "reaction window" which results from multichannelLandau-Zener treatments for the collisional quasimolecules.