Vibration-induced narrowing of electron scattering resonances near threshold
- 28 July 1980
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 13 (14) , 2829-2838
- https://doi.org/10.1088/0022-3700/13/14/022
Abstract
Resonant scattering of electrons from molecules is discussed in the context of an exactly solvable model. There is a strong non-adiabatic entanglement of electronic and nuclear motions for resonances near threshold. The calculations show that the interaction of the electronic and vibrational motions can lead to a dramatic reduction of the resonance width. The limits of applicability of the so-called compound state formula, which has been used so far to analyse low-lying shape resonances in molecules, are pointed out.Keywords
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