Charge transfer and excitation in slow 20 eV–2 keVH++D(1s) collisions

Abstract

We used the recently developed hyperspherical close-coupling method to studyH++D(1s) collisionsat H+ impact energies between 20 eV and 2 keV. We showed that the cross sections for excitationand charge transfer to the 2p states are essentially identical over the whole energyrange and stay relatively independent of energy from 2 keV down to about 150eV. Below 150 eV the cross sections drop precipitously as the energy decreases.Electron capture to H(1s) cross section in this energy region is also calculated.