Quantum dynamics study of rate constant for a reactive collision of astrophysical interest : the D+ + H2 reaction

For chemistry networks describing the reactions for the early universe and especially for accuratemodels of the enrichment of deuterated molecules observed, we need to know in detail manystate-to-state rate coeffcients. Today most of the rate coeffcients of interesting reactions are stillunknown or with a poor accuracy. For example, the uncertainty about the rate coeffcient for thereaction directly affects model predictions for the HD abundance and thereby the cooling rate ofthe primordial gas. It is therefore of astrophysical importance to determine an accurate value ofthese rates, and helping to understand the cooling requires a complete set of the state-to-state ratecoefficients as well …