High resolution study of the autoionizing states of He in their exchange interference energy region

New Data on Autoionizing States of Ne Induced by Low-Energy Electrons from 45 to 64 eV

“…In the present work, we continue our investigation of the autoionizing states of rare gases [14,[21][22][23][24] at low incident electron energies and high resolution in the analyzer.…”

“…It would be possible to record ejected electron spectra in steps of 5 • or 10 • to follow the changes in the profile. These kinds of interference lineshapes can be treated with Shore parametrization similarly to that performed in [21] for He atoms. An experimental upgrade of the electron spectrometer by replacing the existing electron gun with a monochromatic one could improve the data analyses.…”

“…The experimental setup has been described in detail in [21], so only a brief overview will be given here. In the present experiment, a non-monochromatic beam of electrons with energies from 43.37 eV to 202 eV (defined with an uncertainty of ±0.4 eV) collides perpendicularly with an atomic beam emerging from a platinum-iridium non-biased needle (I.D.…”

Classical Trajectory Monte Carlo simulation of coincidence experiments in electron impact ionization of helium

“…We performed it by the normalization of the sum of intensities of the four autoionizing (ejected) peaks. (Specifically the computer fitted Iµ intensity parameters were used [13]).…”

“…The initial states of the target are characterized by a micro-canonical ensemble constrained to the binding energies. In the present CTMC approach, Newton's classical nonrelativistic equations of motions for a four-body system are solved [13]:…”