Semiclassical approach in the theory of single charge transfer in slow ion { diatomic collisions

Zb+ consisting of a homonuclear diatomic molecule and a highly charged atomic ion have been studied. The potential of the one{ electron exchange interaction of this system is calculated asymptotically correctly (for large distances R between interacting particles) in the framework of the non{perturbative semiclassical and the Landau{Herring approaches. The total and state-selective n{, ‘{resolved cross sections of the electron capture in H2+Ar q+ (q = 6;8;14;16) collisions in the energy region from 5.0 to 2£10 3 eV/amu were calculated and compared with available experimental and theoretical data.