(e,2e)triple differential cross section of Mg in coplanar symmetric geometry

Abstract

Spin-averaged static exchange potential and modified semiclassical exchange potential have been used in the distorted-wave Born approximation to calculate the triple differential cross section of Mg $(3{s}^{2})$ in the coplanar symmetric geometry. The calculations have been carried out at impact energies ranging from $(R=)$ 1.78 to 8.84 times the first ionization potential for Mg. The effect of post-collision interactions has been included by making use of the Gamow factor introduced by Whelan et al. [Phys. Rev. A 50, 4394 (1994)]. Present results have been compared with recent experiments of Murray [Phys. Rev. A 72, 062711 (2005)] and are found to be in excellent agreement with the same except for the lowest impact energy (that is, for $R=1.78$ times above the first ionization potential).