A comprehensive review is given on photoionization of rare gas atoms using
monochromatized synchrotron radiation. Emphasis is put upon the general experimental …

Since the first attempts to calculate the helium ground state in the early days of Bohr-
Sommerfeld quantization, two-electron atoms have posed a series of unexpected …

The authors attempt to give a comprehensive discussion of observations of atomic negative-
ion resonances throughout the periodic table. A review of experimental and theoretical …

We review topics of current interest in the physics of electronic, atomic and molecular
scattering in the vicinity of thresholds. Starting from phase space arguments, we discuss the …

Recent investigations of Rydberg atoms are described in an effort to give a picture of their
properties, many of which can be understood from the behaviour of the Coulomb radial …

1" 1. Foreword.-First experiments on electron interaction with gases started soon after the
discovery of this elementary particle. One hundred years ago, Lenard (1894, 1895, 1903) …

The authors present total absolute cross sections for metastable production in the rare gases
by electron impact excitation, from threshold to 140 eV. Detailed comparison is made with …

This review focuses on the use of accelerator-based methods to investigate the interaction
between negative ions and photons, electrons, heavy particles and external electric fields …

The negative ion of hydrogen continues to be important in atomic physics and astrophysics.
Correlations between the two electrons are strong already in the ground state, the only …

Absolute differential cross sections for excitation of helium by electron impact are
reinvestigated within the first 4 eV above threshold at scattering angles of 20, 60, 90 and …