Interference in dissociative attachment cross sections of H2around 14 eV
- 28 April 1979
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 12 (8) , L279-L282
- https://doi.org/10.1088/0022-3700/12/8/004
Abstract
Interference structure has been observed in the differential cross section of H- formation in H2 through the dissociative electron attachment process with an onset at 13.92 eV. This structure is spaced at intervals of 0.2 eV and is attributed to predissociation of a bound state. The proposed predissociation mechanism implies the breakdown of the Born-Oppenheimer approximation and involves rotational coupling and a two-step process between the bound and dissociating state.Keywords
This publication has 15 references indexed in Scilit:
- Variational calculations of resonant states of H2-Journal of Physics B: Atomic and Molecular Physics, 1978
- A simple momentum filter for the separation of negative ions from electronsJournal of Physics E: Scientific Instruments, 1978
- Feshbach projection-operator calculation of the resonant states of H2-Journal of Physics B: Atomic and Molecular Physics, 1977
- Differential cross sections for dissociative attachment in COPhysical Review A, 1977
- New interpretation of resonances inPhysical Review A, 1975
- Electron Transmission Spectroscopy: Core-Excited Resonances in Diatomic MoleculesPhysical Review A, 1972
- Rotational coupling effects on the differential elastic and inelastic cross sections He+-He collisionsJournal of Physics B: Atomic and Molecular Physics, 1971
- Potential curves and symmetries of some resonant states of H2-Journal of Physics B: Atomic and Molecular Physics, 1971
- Resonances in Electron Scattering from H2, HD, and D2The Journal of Chemical Physics, 1966
- Large Isotope Effect in the Formation of or by Electron Impact on , HD, andPhysical Review Letters, 1965