Calculation of intermediate-energy electron-impact ionization of molecular hydrogen and nitrogen using the paraxial approximation

Abstract

We have implemented the paraxial approximation followed by the time-dependent Hartree-Fock method with frozen core for the single impact ionization of atoms and two-atomic molecules. It reduces the original scattering problem to the five-dimensional time-dependent Schrödinger equation solution. By using this method we calculated the multi-fold differential cross section of the impact single ionization of the helium atom, the hydrogen molecule and the nitrogen molecule by the intermediate energy electrons. Our results for the helium and the hydrogen are quite close to experimental data, but for N${}_2$ the agreement is worse apparently because of the insufficiency of the frozen core approximation.

19 pages, 5 figures

References in corpus (1)

• Wave packet evolution approach to ionization of hydrogen molecular ion by fast electrons

Cited by in corpus (5)

• Numerical attoclock on atomic and molecular hydrogen
• The hybrid surface flux method for the ionization amplitude extraction from the calculated wavefunction
• Phase retrieval from angular streaking of XUV atomic ionization
• XUV ionization of the H${}_2$ molecule studied with attosecond angular streaking
• Modern methods for calculations of photoionization and electron impact ionization of two-electron atoms and molecules