Low-energy electron-impact dissociative excitation of molecular hydrogen and its isotopologues
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Authors
Scarlett, L.
Tapley, J.
Fursa, Dmitry
Zammit, M.
Savage, J.
Bray, Igor
Date
2017Type
Journal Article
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Scarlett, L. and Tapley, J. and Fursa, D. and Zammit, M. and Savage, J. and Bray, I. 2017. Low-energy electron-impact dissociative excitation of molecular hydrogen and its isotopologues. Physical Review A. 96 (6): Article ID 062708.
Source Title
Physical Review A
ISSN
School
School of Electrical Engineering, Computing and Mathematical Science (EECMS)
Collection
Abstract
We apply the adiabatic nuclei convergent close-coupling method to electron-impact dissociative excitation of H2 in the low-energy regime. Differential and integrated cross sections are presented for excitation of the bSu+3 state, the primary pathway t o dissociation of H2 at low energies. Agreement with experiment is satisfactory. Results are also presented for the isotopologues D2, T2, HD, HT, and DT, which show a pronounced isotope effect near threshold in both the differential and integrated cross sections.