Hot electrons in the tunnelling ionization of atoms

A compact analytical generalization of the Landau - Dykhne approach is derived that includes rescattering of electrons in the tunnelling ionization of atoms. It is used for calculations of electron energy spectra in the high-energy region. Most of the essential features of recent measurements are reproduced analytically, that is, the onset, the extent and the relative height of the plateau. Coulomb correction is taken into account in the calculations.

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