Ionization in K(n d)–SF6 and K(n d)–CCl4 collisions at intermediate n

Abstract

Rate constants for ion production in collisions between potassium atoms in nd Rydberg states and SF₆ and CCl₄ have been investigated over a range of principal quantum numbers n between 9 and 45. The data suggest that, at the lower values of n, electrostatic interactions between the product ions become important and lead to a marked decrease in free ion production for both target species. The data also demonstrate that only a small fraction of the energy released by dissociative electron attachment to CCl₄ appears as kinetic energy of the Cl⁻ fragment.