Product angular and velocity vector distributions have been measured in a crossed beam experiment for the charge transfer process Ar++H2→Ar+H2 + at relative collision energies of 0.13, 0.48, and 3.44 eV. Charge transfer was found to occur by two distinct mechanisms: (1) a simple electron‐jump mechanism which preserves the quasirectilinear trajectories of the colliding species and which selectively produces H2 + in the vibrational state most nearly resonant with the reactant ion, and (2) an intimate‐collision mechanism which results in large‐angle scattering and which produces H2 + in a broad range of vibrational states.
This is the publisher's version, also available electronically from http://scitation.aip.org/content/aip/journal/jcp/67/6/10.1063/1.435181.
Hierl, Peter M.; Pacak, V.; Herman, Z. (1977). "Kinematics of charge transfer: Ar^++H2." Jounal of Chemical Physics, 67:2678-2686. http://dx.doi.org/10.1063/1.435181