Theoretical and experimental studies of the [Formula Presented] system: Differential cross sections for direct and charge-transfer scattering at kilo-electron-volt energies

Abstract

Differential direct and charge-transfer scattering cross sections are calculated for collisions of [Formula Presented] with [Formula Presented] using the electron nuclear dynamics formalism. The calculated cross sections are compared to direct scattering measurements which are also reported here and to the experimental charge transfer data of Gao et al. [R. S. Gao, L. K. Johnson, C. L. Hakes, K. A. Smith, and R. F. Stebbings, Phys. Rev. A 41, 5929 (1990)]. Cross sections are presented for projectile energies of 0.5, 1.5, and 5.0 keV and scattering angles of [Formula Presented] to [Formula Presented] The differential cross section reveals considerable structure over this angular range which is a consequence of small angle quantum interference and the glory and rainbow effects. For the case of charge transfer, we find that at least 90% of charge transfer events result in the hydrogen atom leaving the system in the [Formula Presented] state. 5555 2002 The American Physical Society.