Reactive collisions between electrons and BeH+ above dissociation threshold

Abstract

Our previous studies of dissociative recombination, and vibrational excitation/de-excitation of the BeH${}^{+}$ ion, based on the multichannel quantum defect theory, are extended to collision energies above the dissociation threshold, taking into account the vibrational continua of the BeH${}^{+}$ ion and, consequently, its dissociative excitation. We have also significantly increased the number of dissociative states of ${}^2\hat{I}$, ${}^2\hat{I}{\pounds }^{+}$ and ${}^2\hat{I}”$ symmetry included in our cross section calculations, generating the most excited-ones by using appropriate scaling laws. Our results are suitable for modeling the kinetics of BeH+ in edge fusion plasmas for collision energies up to 12 eV.

9 pages, 9 figures,