Low-energy electron distributions from the photoionization of liquid water: a sensitive test of electron mean-free paths

The availability of accurate mean-free paths for slow electrons ($<$ 50~eV) in water is central to the understanding of many electron-driven processes in aqueous solutions, but their determination poses major...

Time Delay in Electron Collision with a Spherical Target as a Function of the Scattering Angle

We have studied the angular time delay in slow-electron elastic scattering by spherical targets as well as the average time delay of electrons in this process. It is demonstrated how the angular time delay is connected to the Eisenbud–Wigner–Smith (EWS) time delay. The specific features of both angular and energy dependencies of these time delays are discussed in detail. The potentialities of the derived general formulas are illustrated by the numerical calculations of the time delays of slow electrons in the potential fields of both absolutely hard-sphere and delta-shell potential well of the same radius. The conducted studies shed more light on the specific features of these time delays.

Elastic scattering of slow electrons by carbon nanotubes

In this paper we calculate the elastic scattering cross sections of slow electron by carbon nanotubes. The corresponding electron-nanotube interaction is substituted by a zero-thickness cylindrical potential that neglects the atomic structure of real nanotubes, thus limiting the range of applicability of our approach to sufficiently low incoming electron energies. The strength of the potential is chosen the same that was used in describing scattering of electrons by fullerene C60. We present results for total and partial electron scattering cross sections as well as respective angular distributions, all with account of five lowest angular momenta contributions. In the calculations we assumed that the incoming electron moves perpendicular to the nanotube axis, since along the axis the incoming electron moves freely.

Возбуждение молекул валина электронным ударом в газовой фазе

The measurement procedure and the results obtained by optical spectroscopy upon excitation of valine molecules in the gas phase by slow electrons are described. The emission spectra of the molecules under study in the range of 200-520 nm with excitation by electrons in the energy range of 0-90 eV, as well as the optical functions of the excitation of the most intense spectral lines (bands) of radiation are presented.