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A lowest-order theory of vibrational excitation of polyatomic molecules upon resonant electron impact. Vibrational excitation in $CH_{3}$Cl

Content Provider	Scilit
Author	Gallup, G. A.
Copyright Year	1993
Description	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics The author derives equations giving the differential cross section for excitation of vibrations by resonant electron impact in polyatomic molecules. The description 'lowest order' applies because many of the quantities are represented by Taylor's expansions in the normal coordinates with the series truncated after the first term that produces excitation. The discussion shows the importance of the phases of the scattering amplitude matrix in influencing the angular scattering in vibrational excitation. In particular, the linear Jahn-Teller effect between a doubly degenerate resonant state and a degenerate vibrational mode produces more scattering in the backward direction than in the forward direction in the case of the v=0 to v=1 excitation. The theory is applied to methyl chloride, $CH_{3}$Cl, giving a comparison of the results with experiment.
Related Links	http://iopscience.iop.org/article/10.1088/0953-4075/26/4/014/pdf
Ending Page	774
Page Count	16
Starting Page	759
ISSN	09534075
e-ISSN	13616455
DOI	10.1088/0953-4075/26/4/014
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Issue Number	4
Volume Number	26
Language	English
Publisher	IOP Publishing
Publisher Date	1993-02-28
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics Physical Chemistry Atomic, Molecular and Chemical Physics Vibrational Excitation
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics

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