Experimental and theoretical study of electron impact excitation of the 33P state of helium

N. Igual-Ruiz; B.P. Donnelly; D.T. McLaughlin; D. Cvejanovic; A. Crowe; D. Fursa; K. Bartschat; I. Bray

doi:10.1088/0953-4075/34/11/320

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Experimental and theoretical study of electron impact excitation of the 33P state of helium

Journal article

Peer reviewed

Experimental and theoretical study of electron impact excitation of the 33P state of helium

N. Igual-Ruiz, B.P. Donnelly, D.T. McLaughlin, D. Cvejanovic, A. Crowe, D. Fursa, K. Bartschat and I. Bray

Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.34(11), pp.2289-2300

2001

DOI: https://doi.org/10.1088/0953-4075/34/11/320

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Abstract

Excitation of the 3 3p state of helium has been studied experimentally and theoretically using the convergent close-coupling (CCC) and R-matrix with pseudo-states (RMPS) methods. The results of a polarization correlation experiment at 40 eV are accurately predicted by both theoretical methods. The CCC values of the integral polarization also agree well with experiment when the influence of cascading states is accounted for in the calculations. We conclude that the CCC/RMPS calculations provide the most reliable excitation cross sections available over a wide range of incident electron energies. A comparison is also made between experimental and RMPS cross sections and polarizations in the resonance region, 55-60 eV. This model represents the first attempt to explicitly include physical doubly excited states of neutral helium in a close-coupling calculation.

Details

Title: Experimental and theoretical study of electron impact excitation of the 33P state of helium
Authors/Creators: N. Igual-Ruiz (Author/Creator)
B.P. Donnelly (Author/Creator)
D.T. McLaughlin (Author/Creator)
D. Cvejanovic (Author/Creator)
A. Crowe (Author/Creator)
D. Fursa (Author/Creator)
K. Bartschat (Author/Creator)
I. Bray (Author/Creator)
Publication Details: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.34(11), pp.2289-2300
Publisher: Institute of Physics
Identifiers: 991005540759007891
Murdoch Affiliation: School of Mathematical and Physical Sciences; Centre for Atomic, Molecular and Surface Physics
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.15 Physical Chemistry; 2.15.664 Dissociative Electron Attachment
Web Of Science research areas: Optics; Physics, Atomic, Molecular & Chemical
ESI research areas: Physics