Charge transfer and excitation in slow 20 eV-2 keV H+ plus D(1s) collisions

We used the recently developed hyperspherical close-coupling method to study H+ + D(1s) collisions at H+ impact energies between 20 eV and 2 keV. We showed that the cross sections for excitation and charge transfer to the 2p states are essentially identical over the whole energy range and stay relatively independent of energy from 2 keV down to about 150 eV. 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.