Excitation of Hydrogen Molecules by Electron Impact. II. Excitation toD(3pπ Πu1)State

Abstract

The investigation of the excitation of the hydrogen molecule by electron impact, employing one-center wave functions and Born and Born-Ochkur approximations, has been extended to the $D\left(3p\pi {}_{}{}^1{}_{}{}^{}\Pi _u^{}{}_{}{}^{}\right)$ excited state (the excitation to the $B$ and $C$ states of the hydrogen molecule has been recently investigated by the author elsewhere). The oscillator strength is in excellent agreement with the experimental value of Geiger and with the theoretical value of Mulliken and Rieke. However, the values for the generalized oscillator strength are larger for $K<\mathrm{}0.33\mathrm{}$ and smaller for higher values of $K$ than those obtained by Roscoe. The total excitation cross sections are in fair accord with the estimates of Craggs and Massey.