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Cross sections for electron impact excitation of the b^3Σ_u^+ state of H_2: an application of the Schwinger multichannel variational method

Lima, Marco A. P. and Gibson, Thomas L. and Huo, Winifred M. and McKoy, Vincent (1985) Cross sections for electron impact excitation of the b^3Σ_u^+ state of H_2: an application of the Schwinger multichannel variational method. Journal of Physics B: Atomic and Molecular Physics, 18 (24). L865-L870. ISSN 0953-4075 . http://resolver.caltech.edu/CaltechAUTHORS:20120628-104127544

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Abstract

In this and two accompanying letters, the results of calculations of the cross sections for electron impact excitation of the b^3Σ_u^+ state of H_2, for collision energies from near threshold to 30 eV, are presented. The results are obtained using a multichannel extension of the Schwinger variational principle at the two-state level. The quantitative agreement between the integral cross sections of these three studies is very good. Inclusion of correlation terms in the scattering wavefunctions, which relax the orthogonality between bound and continuum orbitals is seen to affect the cross sections substantially. Although a comparison of these calculated cross sections with available experimental data is encouraging, some serious discrepancies exist.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0022-3700/18/24/007DOIUNSPECIFIED
http://iopscience.iop.org/0022-3700/18/24/007PublisherUNSPECIFIED
Additional Information:© 1985 The Institute of Physics. Received 16 September 1985. We would like to thank Drs B Schneider and L Collins for helpful discussions. We would also like to thank Drs B Schneider, L Collins, S Trajmar, C Noble, and H Nishimura for making their results available to us prior to publication. One of us (MAPL) acknowledges the financial support from the Comissão Nacional de Energia Nuclear (CNEN), Rio de Janeiro, Brazil. The research of WMH is supported by the National Aeronautics and Space Administration NASA-Ames Cooperative Agreement No NCC2-147. This material is based upon research supported by the National Science Foundation under Grant No PHY-8213992 and by the NASA-Ames Cooperative Agreement No NCC2-319.
Funders:
Funding AgencyGrant Number
Comissão Nacional de Energia Nuclear (CNEN)UNSPECIFIED
NASA-Ames Cooperative AgreementNCC2-147
NSFPHY-8213992
NASA-Ames Cooperative AgreementNCC2-319
Classification Code:PACS: 34.80.Gs, 34.50.Gb, 31.15.xt
Record Number:CaltechAUTHORS:20120628-104127544
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120628-104127544
Official Citation:Cross sections for electron impact excitation of the b 3Σu+ state of H2: an application of the Schwinger multichannel variational method M A P Lima, T L Gibson, W M Huo and V McKoy doi:10.1088/0022-3700/18/24/007
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32168
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:28 Jun 2012 18:05
Last Modified:28 Jun 2012 18:05

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