The elastic scattering of electrons from atoms and ions containing core holes

Abstract

Differential cross sections for the elastic scattering of electrons from the ground states of the closed shell atomic systems Ne, Ar and Na+, and the excited states of the open shell systems containing a highly localized core hole obtained by removing a single electron from any one of the occupied shells of these closed shell systems, have been calculated. Local density approximations to the exchange and correlation potentials have been used in these calculations. A comparison of the calculated results with other experimental and theoretical data is shown and discussed.

e± Ar scattering in the energy range 1 eV ≤ E i ≤ 0.5 GeV

“…Here k is the relativistic wave-number of the projectile. The equations (25) and (26)are solved numerically using the subroutine package RADIAL [50] to obtain the asymptotic solution in (27). The scattering amplitude for electrons and positrons, used in the OPM, consists of a direct part f (θ) and a spin-flip part g(θ), which are given by…”

“…Since the first electron-atom scattering experiments in 1931 [5], many theoretical and experimental studies on e ± -Ar have been available in the literature [6][7][8]. Apart from these investigations, the experimental works of Ranković et al [9], Zecca et al [10], Jones et al [11], Kurokawa et al [12], Cho and Park [13], Hargreaves et al [14], Milosavljević et al [15], Mielewska et al [16] and Gilbert et al [17], and the theoretical calculations of Ranković et al [9], Bartschat et al [18], Green et al [19], Fursa and Bray [20], Jones et al [11], Mohan et al [21], McEachran and Stauffer [22], Bote et al [23], Gargioni and Grosswendt [4], Adibzadeh and Theodosiou [24], Yousif Al-Mulla [25], Jablonski et al [26], Salvat [27], Stepanek [28], Blanco and García [29,30], Paikeday and Alexander [31], Kelemen [32], Bartlett and Stelbovics [33], Sienkiewicz et al [34] and Pandya and Shah [35], are worth mentioning among the important works.…”