van der Burgt, Peter J.M. and van Eck, J. and Heideman, H.G.M. (1985) A new He- resonance in the excitation of the (2s2p)3P autoionising state by electrons. Journal of Physics B: Atomic and Molecular Physics, 18 (6). L171-L174. ISSN 0022-3700

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Abstract

Four He- resonances with all three electrons in the n=2 shell are accessible by electron impact from the He ground state but only two resonances have been identified unambiguously in electron-helium scattering experiments. Experimental evidence for the presence of a He- resonance at 59.90 eV in the excitation cross section of the He**(2s2p)3P autoionising state is presented and discussed.

Item Type:	Article
Keywords:	He- resonance; excitation; (2s2p)3P autoionising state; electrons;
Academic Unit:	Faculty of Science and Engineering > Experimental Physics
Item ID:	9825
Identification Number:	https://doi.org/10.1088/0022-3700/18/6/005
Depositing User:	Dr Peter van der Burgt
Date Deposited:	24 Aug 2018 11:39
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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