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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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.
|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.|
|Classification Code:||PACS: 34.80.Gs, 34.50.Gb, 31.15.xt|
|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.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||28 Jun 2012 18:05|
|Last Modified:||28 Jun 2012 18:05|
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