Characterization of some autoionization resonances in CO2 using triply differential photoelectron spectroscopy

Abstract
We report vibrationally resolved branching ratios and asymmetry parameters for two sets of autoionizing resonances in CO2 near 680 and 750 Å. These resonances were excited with monochromatized synchrotron radiation from the National Bureau of Standards storage ring and the energy and angle of ejection of the photoelectrons were analyzed. The results show striking non‐Franck–Condon behavior.