Final States in the Dissociative Excitation of Molecular Hydrogen

26 July 1971

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 27 (4), 174-177
https://doi.org/10.1103/physrevlett.27.174

Abstract

The dissociative excitation

H_{2} + e \to H (2 s) + H + e

has been studied with a time-of-flight method. Measurements of the excitation function and the angular distribution of the metastable atoms show that the slow atoms arise from dissociation out of

e {}^{3}Σ_{u}^{+}

and

B^{'} {}^{1}Σ_{u}^{+}

states and from predissociation out of the

d {}^{3}Π_{u}^{+}

and

D {}^{1}Π_{u}^{+}

states. The fast atoms arise from a previously unreported

{}^{1}Π_{u}

state that corresponds to a separated-atom limit in which both atoms are in

n = 2

states.

Keywords

This publication has 12 references indexed in Scilit:

New Data on the Velocity Distribution of $H (2S)$ Atoms Produced by Dissociative Excitation of $H_{2}$
Physical Review Letters, 1971
Effect of recoil on the velocity distribution of metastable atoms produced by electron impact
Physics Letters A, 1969
Metastable Species Produced by Electron Excitation of N2, H2, N2O, and CO2
The Journal of Chemical Physics, 1969
H(2S) atoms produced by dissociative excitation of molecules
Physics Letters A, 1969
Velocity Distribution of Metastable H Atoms Produced by Dissociative Excitation of $H_{2}$
Physical Review B, 1967
Excitation of Hydrogen Molecule by Electron Impact. III. Singlet-Triplet Excitations
Physical Review B, 1967
Excitation of Hydrogen Molecules by Electron Impact
Physical Review B, 1966
Absorption Spectra of H2 in the Vacuum Ultraviolet Region. II. The B′—X, B″—X, D—X, and D′—X Bands
The Journal of Chemical Physics, 1964
Doppler line shape of atomic fluorescence excited by molecular photodissociation
Proceedings of the IEEE, 1963
Anisotropies in Angular Distributions of Molecular Dissociation Products
Physical Review Letters, 1962

Cited by 16 articles