Fine structure effect on the charge transfer reaction of Ar+(2P3/2,1/2)+N2 (X 1Σ+g, v=0)

The relative spin-orbit-state-selected total charge transfer cross sections, σ3/2 and σ1/2, for the reactions, Ar+ (2P3/2,1/2)+N2 (X̃ 1∑+g ,v=0) → Ar+N+2 at the center-of-mass collision energy (Ec.m.) range of 0.41–164.7 eV, have been determined using the photoionization and crossed ion–neutral beam methods. The kinetic energy dependences for σ1/2/σ3/2 is found to exhibit a minimum at Ec.m.≊3.3 eV, an observation consistent with the prediction of a recent semiclassical theoretical calculation of Spalburg and Gislason.