Fred W Meyer

TL;DR: A theoretical analysis of the neutralization dynamics above the surface, prior to impact, based on the classical over-the-barrier model, finds satisfactory agreement with recent data for Auger yields and describes the transient formation of hollow'' atoms.

TL;DR: Strong evidence is provided that the double-capture process involves electron-correlation effects whose analysis leads beyond the independent-electron model.

TL;DR: In this article, the behavior of electron capture cross sections at low velocities is discussed qualitatively using the Landau-Zener formalism, showing that the cross sections for electron capture from atomic and molecular hydrogen are systematically larger than the corresponding cross sections from H. The cross sections are shown to decrease monotonically with increasing velocity and to scale in magnitude roughly as ${q}^{2}

TL;DR: Measured cross sections for electron capture by a variety of multiply charged ions in collisions with atomic and molecular hydrogen are presented in this article, where the data are primarily for He-like and Li-like ions of B, C, N, and O in the velocity range 0.4-1.8 cm/sec.

TL;DR: In this article, total electron-capture cross-section measurements are reported for collisions with hydrogen atoms and molecules in the energy range (0.5-7) keV/amu, and the agreement is good for those systems where detailed perturbed-stationary state theory is available, but is best with those calculations in which the collision dynamics as well as the molecular couplings are treated quantum mechanically.