Absolute cross sections and kinetic energy release distributions for electron-impact dissociation of HD2+

Absolute cross sections results are reported for electron impact dissociative excitation and ionization of HD2+ in the electron energy range from threshold to 2.5 keV. Direct and resonant dissociative excitation is found to dominate the production of possible ionic products in the low energy region. Dissociative ionization is observed for H+ and D+ products only. The lowness of dissociative ionization signals both for HD+ and for D2+ indicate that molecular ions are dominantly formed in dissociative states, a situation which totally contrasts with the D3+isotopomer case.