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 …

The presence of vortices in the ionization of hydrogen atoms by positrons at intermediate
impact energies is investigated. The present findings show that a previously reported …

The efficiency of tungsten meshes and thin foils for moderation of fast positrons from 22 Na
has been investigated in transmission geometry and a fair agreement has been found with …

By means of a systematic theoretical study of the transition matrix element T for the
${{e}^{+}}+{\rm H} $ ionization collisions in a collinear geometry, we uncover the presence of …

A method to form high quality electrostatically guided lepton beams is explored. Test
electron beams are extracted from tailored plasmas confined in a Penning-Malmberg trap …

We describe a scheme for high efficiency ($\sim 90\% $) extraction of 50 ns positron
bunches from a buffer gas trap in an electromagnetic field free region. The positrons are time …

Ionization collisions by positron impact at low and intermediate energies are investigated by
means of a classical trajectory Monte Carlo (CTMC) simulation. Calculations of fully …

Progress and methods used in positron based studies of inelastic atomic interactions are
traced from the original discovery of the positron to the present. Following a historic overview …

An electrostatic positron beam, incorporating a remoderation stage to yield brightness
enhancement with time-of-flight capabilities, has been developed and characterized. The …

As well as probing matter—antimatter interactions, positrons (as positive electrons) have
been employed to highlight charge and mass effects in the dynamics of collisions, including …