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 …

Recoil-ion and electron momentum spectroscopy is a rapidly develo** technique that
allows one to measure the vector momenta of several ions and electrons resulting from …

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 …

This paper reviews the knowledge of the structure, dynamics and collisions of atomic
negative ions, as accumulated at the end of 2003, and describes how the research exploring …

A rather complete understanding is emerging of the process of full fragmentation of the
helium atom following absorption of a single photon. In this review the major experimental …

Using theoretical results from complex rotation calculations and data from experimental
photoionization cross sections, the quantum defects, the widths, the oscillator strengths and …

Recent progress in the semiclassical description of two‐electron atoms is reported herein. It
is shown that the classical dynamics for the helium atom is of mixed phase space structure …

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 …

A continuum state of two electrons with momenta k 1 and k 2 can be represented as a linear
combination of two-electron states with quantum numbers L, M, S and pi. Conditions are …