Theoretical state-to-state charge transfer cross sections for collisions of Ar+ (2P3/2, 2P1/2) with N2

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Abstract
State‐to‐state cross sections have been calculated for collisions of Ar+(2P3/2, 2P1/2) with N2 over the relative collision energy range 1–4000 eV. The computations have been done by means of the vibronic semiclassical method recently used by Parlant and Gislason for N+2+Ar collisions. The translational motion is treated classically, and the time‐dependent Schrödinger equation is solved exactly for the vibronic states of the system. The potential energy surfaces utilized are those of Archirel and Levy. The results for the total charge transfer cross sections are in fairly good agreement with experimental data over the whole energy range. An unexpected participation of the A state of N+2 at low collision energy is observed. The charge transfer cross section ratio for the two spin–orbit states is discussed in a comparison with the available experimental data. In addition, the vibrational state distributions of N+2(X;v’) show good agreement with the recent measurements of Liao et al.