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Mašin, Zdeněk and Gorfinkiel, Jimena D.
(2016).
DOI: https://doi.org/10.1140/epjd/e2016-70165-x
Abstract
We present a detailed analysis of the effect of the well known third π ∗ resonance on the angular behaviour of the elastic cross section in electron scattering from pyrimidine. This resonance, occurring approximately at 4.7 eV, is of mixed shape and core-excited character. Experimental and theoretical results show the presence of a peak/dip behaviour in this energy range, that is absent for other resonances. Our investigations show that the cause of the peak/dip is an interference of background p-wave to p-wave scattering amplitudes with the amplitudes for resonant scattering. The equivalent resonance in pyrazine shows the same behaviour and the effect is therefore likely to appear in other benzene-like molecules.
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About
- Item ORO ID
- 46865
- Item Type
- Journal Item
- ISSN
- 1434-6060
- Extra Information
- Topical Issue: Advances in Positron and Electron Scattering
- Academic Unit or School
-
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM) - Research Group
- Physics
- Copyright Holders
- © 2016 The Authors
- Depositing User
- Jimena Gorfinkiel