Translational energy spectroscopy of N + and O + in collision with O 2

Abstract

High-resolution translation energy spectroscopy has been performed on N + and O + ions scattered off O 2 molecules. Twenty-one reaction channels have been unambiguously identified, all of which are consistent with the Wigner spin conservation rule. A simple estimate of the ion-beam constitution reveals the presence of significant fractions of the metastable 1D state in the N + beam and the 2D and 2P states in the O + beam obtained under our source conditions.