Abstract

The neutralization rates for resonant capture into the b 3 Σ + u state and Auger capture into the X 1 Σ + g are calculated for H + 2 ions impinging on an aluminum surface. The neutralization of the ion into the b state leaves the molecule in an excited dissociating state, whereas neutralization into the X state leaves the molecule in its stable ground state. In the present work we compare the resonant/Auger population ratio with experimental estimates based on the dissociation of H 2 molecules during H + 2 and H 2 collisions on surfaces.

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