New Data on the Velocity Distribution ofH(2S)Atoms Produced by Dissociative Excitation ofH2

Abstract

New structure has been observed in the time-of-flight distribution of $\mathrm{H}\mathrm{}\left(2S\right)\mathrm{}$ atoms produced by electron bombardment of ${\mathrm{H}}_2$. The observed time-of-flight peaks are so located as to agree with the interpretation that the dissociative excitation proceeds predominantly through predissociation of intermediate bound states.