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Molecular distorted-wave Born approximation for ionization of H2 by electron impact

The molecular distorted-wave Born approximation is proposed to study the (e, 2e) reaction for H2 targets. The wave functions of the incoming and outgoing electrons are obtained by solving the Lippmann–Schwinger equations, and the T-matrix in the Lippmann–Schwinger equations is calculated in a momentum space static-exchange-optical model. Triple differential cross sections are computed for incident energies of 100 and 250 eV in coplanar asymmetric geometry. Comparison of the present calculated results with the available experimental data in the literature reveals that there is good agreement.