On the vibrational state dependence of the asymmetry parameter of angular distribution in the photoelectron spectra

Abstract

A discussion is given on the changes obtainable in the asymmetry parameter β with vibrational state of the ion in the approximation involving fixed direction of body-frame orientation during the electron ejection. The R dependence of the electronic matrix elements is taken into account by calculation of appropriate displaced oscillator integrals. Inclusion of a nuclear matrix element gives in most cases negligible effect for the direct ionization. β_ν′ are calculated for H₂ and N₂. Expected variations in β_ν′ are compared with recent experimental data on N₂ and CO. Higher partial waves and their effect on β_ν′ are discussed.

Based on work done in part at the Institut für Physikalische und Theoretische Chemie, Technishe Universität München, Munich, West Germany.

Based on work done in part at the Institut für Physikalische und Theoretische Chemie, Technishe Universität München, Munich, West Germany.

Notes

Based on work done in part at the Institut für Physikalische und Theoretische Chemie, Technishe Universität München, Munich, West Germany.