Bare- and dressed-ion collisions from neon atoms studied within a nonperturbative mean-field approach

POSTER

Abstract

Motivated by the availability of new experimental data [1] we study electron removal processes in collisions of neon atoms with doubly- and triply-charged bare and dressed ions in the 25 keV/u to 1 MeV/u impact energy regime. The many-electron problem is represented by a single mean field, which in the case of dressed-ion impact includes the projectile electrons. Moreover, the same basis is used to propagate all active orbitals thereby ensuring orthogonality at all times and allowing for a final-state analysis in terms of standard Slater determinantal wave functions. The same approach was used in a recent work for B$^{2+}$-Ne collisions [2], in which we examined the role of the projectile electrons for target-recoil-charge-state production. The present study expands on that work in several respects: (i) additional collision channels are considered; (ii) time-dependent response is taken into account; (iii) comparisons with equicharged bare ions are carried out in order to shed more light on the role of the (active and passive) projectile electrons.\\[4pt] [1] W. Wolff \textit{et al.}, Phys. Rev. A \textbf{84}, 042704 (2011); J. S. Ihani \textit{et al.}, J. Phys. B \textbf{46}, 115208 (2013).\\[0pt] [2] G. Schenk \textit{et al.}, Phys. Rev. A \textbf{88} 012712 (2013).

Authors

  • Gerald Schenk

    York University

  • Tom Kirchner

    York University