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Model study of vibrational excitation in electron-polyatomic molecule collisions
| Content Provider | Scilit |
|---|---|
| Author | Gauyacq, J. P. |
| Copyright Year | 1990 |
| Description | Journal: Journal of Physics B: Atomic, Molecular and Optical Physics The effective range approximation, which has been limited to the treatment of electron-diatomic molecule interactions, is generalized to the case of electron-polyatomic molecule collisions. A model study of the vibrational excitation process is presented with the aim of recognizing features specific to the polyatomic targets. The model target molecule is modelled by a two vibrational mode molecule, one of the vibrational frequencies being very small to mimic a quasicontinuum of vibrational levels. It is found that the vibrational modes of the molecule cannot be treated independently, and that a resonance created by the motion along one coordinate can induce a vibrational excitation along another coordinate. This effect is analysed by looking at the time delay and time dependence of the vibrational excitation process. A significant production of low energy electrons is also observed in the resonance region, thus yielding an interpretation of the 'unspecific' vibrational excitation observed by Allan (1984,1988,1989) in large polyatomics. |
| Related Links | http://iopscience.iop.org/article/10.1088/0953-4075/23/17/017/pdf |
| Ending Page | 3056 |
| Page Count | 16 |
| Starting Page | 3041 |
| ISSN | 09534075 |
| e-ISSN | 13616455 |
| DOI | 10.1088/0953-4075/23/17/017 |
| Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Issue Number | 17 |
| Volume Number | 23 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1990-09-14 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics B: Atomic, Molecular and Optical Physics Atomic, Molecular and Chemical Physics Vibrational Excitation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Condensed Matter Physics |
