Resonances in the electronic excitation of molecular hydrogen

11 June 1990

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 64 (24) , 2889-2892
https://doi.org/10.1103/physrevlett.64.2889

Abstract

Ab initio R-matrix scattering calculations are presented for electron-

H_{2}

collisions for energies up to 30 eV. Excitation from the ground state,

X^{1}

Σ_{g}^{+}

, to five accurately represented, low-lying electronic states,

b^{3}

Σ_{u}^{+}

a^{3}

Σ_{g}^{+}

B^{1}

Σ_{u}^{+}

c^{3}

Π_{u}

, and

C^{1}

Π_{u}

, is explicitly considered. An attempt is made to rationalize the wealth of experimental data. Resonance structures similar to those assigned experimentally to the a and c series are found as well as a number of other resonancelike features.

Keywords

This publication has 23 references indexed in Scilit:

Electron-impact excitation of the b³Σ_u⁺state of H₂using the complex Kohn method: R dependence of the cross section
Journal of Physics B: Atomic, Molecular and Optical Physics, 1988
Cross sections for excitation of the $b^{3}$ $Σ_{u}^{+}$ , a ${}^{3}Σ_{g}^{+}$ , and $c^{3}$ $Π_{u}$ states of $H_{2}$ by low-energy electrons
Physical Review A, 1988
Application of the Schwinger multichannel formulation to electron-impact excitation of the B ${}^{1}Σ_{u}^{+}$ state of $H_{2}$
Physical Review A, 1987
The total excitation cross section of the c³Π_ustate of H₂
Journal of Physics B: Atomic and Molecular Physics, 1986
Electron resonance structure observed in the c3Πuand B1Σu+cross sections of H2
Journal of Physics B: Atomic and Molecular Physics, 1986
Cross sections for electron impact excitation of the b³Σ_u⁺state of H₂: an application of the Schwinger multichannel variational method
Journal of Physics B: Atomic and Molecular Physics, 1985
Electronic excitation of the b³Σ_ustate of H₂by electron impact in the linear algebraic approach
Journal of Physics B: Atomic and Molecular Physics, 1985
Electronic excitation of the b³ _u⁺state of H₂using the R-matrix method
Journal of Physics B: Atomic and Molecular Physics, 1985
Electron impact excitation of H₂(D₂). Resonance phenomena associated with the X²Σ_u⁺and B²Σ_g⁺states of H₂^-in the 10 eV region
Journal of Physics B: Atomic and Molecular Physics, 1984
Resonances in Electron Impact on Diatomic Molecules
Reviews of Modern Physics, 1973