Abstract
The technique of double translational energy spectroscopy (DTES),recently successfully developed in this laboratory for use with targets ofatomic hydrogen, has been used to study one-electron capture byground-state N2+(2s22p)2Po ions in collisions with hydrogenatoms at energies within the range 0.8-6.0 keV. Cross sections for theformation of the main excited product channels have been determined. Themeasurements allow a re-evaluation of our previous TES measurementscarried out with N2+ primary beams containing an admixture ofmetastable N2+(2s2p2)4P ions. The main findings of theseearlier measurements are confirmed and the DTES measurements nowremove any ambiguity in interpretation of the experimental data. Whilerecent theoretical studies correctly predict the two main N+3Do and 3Po product channels, the quantitativeagreement with experiment is only partially satisfactory.
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