Abstract
The classical trajectory Monte Carlo simulation has been used to investigate the collisions of protons with alkali metal atoms in their ground state. Model interaction potential has been used to describe the electron-ionic core interaction. The cross sections for the capture and ionization in the energy range 1--100, keV/amu have been calculated and compared with the available experimental and theoretical results. The effects of the presence of a strong static electric field in different geometrical features on the capture and ionrzation cross sections have also been investigated. It has been found that the electric field causes the cross section for the capture to decrease while for the ionization enhance dramatically. Many of the null field features are retained. The analyses of the final state n, , l-distribution in the electron capture process reveals H(2p) to be the most populated level in both the cases, with and without electric field.
