In recent years, there has been a wealth of new science involving low-energy antimatter (ie,
positrons and antiprotons) at energies ranging from 10 2 to less than 10-3 eV. Much of this …

This paper is a review of low-energy positron interactions with atoms and molecules.
Processes of interest include elastic scattering, electronic and vibrational excitation …

Progress in the ability to accumulate and cool positrons and antiprotons is enabling new
scientific and technological opportunities. The driver for this work is plasma physics research …

The rate of annihilation of low-energy positrons in many molecular gases is orders of
magnitude larger than can be explained on the basis of simple collisions. Developments in …

We present a compilation of recommended positron–molecule cross sections for a range of
scattering processes including elastic scattering, vibrational excitation, discrete electronic …

This paper presents an experimental study designed to address the long-standing question
regarding the origin of very large positron annihilation rates observed for many molecules …

Absolute measurements are presented for the positron-impact cross sections for positronium
formation, direct ionization, and total ionization of the diatomic molecules N 2, CO, and O 2 …

An instrument has been designed and constructed to provide new insights into fundamental,
low energy positron scattering processes. The design is based on the Surko trap system and …

The development of buffer-gas trapping and magnetized beam formation has provided
positron beams with significantly improved energy resolution (Δ E<~ 0.025 eV) compared to …

The present paper provides a joint experimental and theoretical study of positron scattering
from pyrazine. Experimental data were measured employing a low-energy positron …