TY - JOUR
T1 - Cross sections for electron impact excitation of the b 3σ u+ state of H2
T2 - An application of the Schwinger multichannel variational method
AU - Lima, M. A.P.
AU - Gibson, T. L.
AU - Huo, W. M.
AU - McKoy, V.
N1 - Copyright:
Copyright 2007 Elsevier B.V., All rights reserved.
PY - 1985
Y1 - 1985
N2 - In this and two accompanying letters, the results of calculations of the cross sections for electron impact excitation of the b 3 Sigma u+ state of H2, 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.
AB - In this and two accompanying letters, the results of calculations of the cross sections for electron impact excitation of the b 3 Sigma u+ state of H2, 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.
UR - http://www.scopus.com/inward/record.url?scp=4243864532&partnerID=8YFLogxK
U2 - 10.1088/0022-3700/18/24/007
DO - 10.1088/0022-3700/18/24/007
M3 - Article
AN - SCOPUS:4243864532
VL - 18
SP - L865-L870
JO - Journal of Physics B: Atomic and Molecular Physics
JF - Journal of Physics B: Atomic and Molecular Physics
SN - 0022-3700
IS - 24
M1 - 007
ER -