Multichannel atomic spectra frequently exhibit such extraordinary visual complexity that they
appear at first glance to be uninterpretable. The present review discusses how to unravel …

This Review presents electron affinities of atoms and structures of atomic negative ions. The
negative ion properties of many elements in the main groups of the Periodic Table were well …

The field of experimental positronium physics has advanced significantly in the last few
decades, with new areas of research driven by the development of techniques for trapping …

This article updates a 14 yr old review on this subject [J. Phys. Chem. Ref. Data 14, 731
(1985)]. A survey of the electron affinity determinations for the elements up to Z= 94 is …

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 …

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 …

Publisher Summary This chapter discusses resonance and threshold phenomena in low-
energy electron collisions with molecules and clusters. Low-energy collisions of electrons …

Recent research has shown that there are a number of atoms and atomic ions that can bind
a positron. The number of atoms known to be capable of binding a positron has expanded …

The basic ideas of the B-spline R-matrix (BSR) approach are reviewed, and the use of the
method is illustrated with a variety of applications to atomic structure, electron–atom …

We discuss the interpretation of delayed electron emission from excited clusters as a
statistical process analogous to thermionic emission from a hot filament. We argue that …