van der Burgt, Peter J.M. and Heideman, H.G.M. (1985) A new type of He- resonance states in the autoionisation region. Journal of Physics B: Atomic and Molecular Physics, 18 (21). L755-L761. ISSN 0022-3700

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Abstract

The authors have studied the near-threshold excitation of autoionising states in electron-helium scattering. Only a particular set of autoionising states is observed in the measurements, which has led them to formulate a selection rule for threshold excitation of autoionising states. Evidence is presented that autoionising states belonging to this particular set are strongly excited near their thresholds by hitherto unknown shape resonances.

Item Type:	Article
Keywords:	He- resonance states; autoionisation region; electron-helium scattering; threshold excitation;
Academic Unit:	Faculty of Science and Engineering > Experimental Physics
Item ID:	9827
Identification Number:	https://doi.org/10.1088/0022-3700/18/21/007
Depositing User:	Dr Peter van der Burgt
Date Deposited:	24 Aug 2018 13:49
Journal or Publication Title:	Journal of Physics B: Atomic and Molecular Physics
Publisher:	IOP Publishing
Refereed:	Yes
URI:	http://iopscience.iop.org

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