Knowledge Bank

In previous we reported $H\ast$nl product detection experiments and preliminary theoretical studies and proton detection experiments for the $He++H2$ reaction processes. More extensive theoretical studies and ion detection scans have now been made and are reported. The theoretical studies include scans of the potential energy surfaces of the $X2\Sigma +,22\Sigma +,32\Sigma +$ and $12\Pi$; states and surface cuts of the $n2A1,12A\prime \prime ,n2A1$ and $12B1$ states. The ion detection experiments involve the determination of relative cross sections and quantitative energy thresholds associated with the product ions $H+,HeH+,H3+$ and their deuterium analogs. Multi-surface pathways dominate.