Abstract
We summarize theoretical studies of dissociative electron attachment to rovibrationally excited H2 molecules by comparing results of earlier local calculations with the results of more recent nonlocal complex potential calculations. The extension of the resonance theory to the near-threshold resonant dissociation is discussed and results are shown for dissociation from vibrationally excited states. Contributions from two negative-ion resonances, 2Σu+ shape resonance and 2Σg+ Feshbach resonance, are analysed. We also demonstrate the isotope effect by presenting the peak values of the dissociative attachment cross section for all five isotopic substitutes of H2.
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