Electron-induced resonant dissociation and excitation ofNeH+andNeD+

Abstract

Cross sections for electron collisions with ${\text{NeH}}^{+}$ resulting in dissociative recombination, resonance enhanced dissociative excitation, and vibrational excitation are calculated in the 1 to 19.5 eV energy region. In this energy region, the cross sections are dominated by a series of doubly excited resonance states converging to the first excited state of the ion. The resonance state energies and widths are calculated using the complex Kohn variational method and are used as input to a time-dependent treatment of the nuclear dynamics. The calculated cross sections for dissociative recombination of ${\text{NeH}}^{+}$ and ${\text{NeD}}^{+}$ are compared to recent measurements at the ASTRID storage ring. Cross sections for dissociative excitation and vibrational excitation are also reported for the ${\text{NeH}}^{+}$ and ${\text{NeD}}^{+}$ molecular ions and compared to recent cross beam experiments.