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 …

Much progress in the theory of positron scattering on atoms has been made in the ten years
since the review of Surko et al (2005 J. Phys. B: At. Mol. Opt. Phys. 38 R57). We review this …

We have measured the kinetic energy of positronium (Ps) atoms emitted into a vacuum from
a porous silica film subsequent to positron bombardment, via the Doppler spread of the …

The cross sections for the formation of positronium in the 2 P state in collisions of positrons
with He, Ar, and Xe atoms have been determined by measuring coincidences between the …

Slow positrons implanted into a porous silica film may efficiently form positronium (Ps) atoms
that diffuse through a network of interconnected pores. At high Ps densities, the long lifetime …

Recent experiments combining lifetime and laser spectroscopy of positronium (Ps) show that
these atoms are emitted from p-Si (100) at a rate that depends on the sample temperature …

We investigate the four-body Coulomb process of low-energy elastic positronium-hydrogen
(Ps-H) scattering below the Ps (n= 2) excitation threshold using scattering wave functions …

Internal consistency in a close-coupling approach to positron-hydrogen scattering is
investigated with a particular focus on the potential overlap between the atomic and …

Experimental determinations of the absolute differential positronium-formation cross
sections near 0∘ for Ne, Ar, Kr, and Xe are presented and compared with theory. The …

The emission of positronium negative ions from W (100) and Mo and Ta polycrystalline
surfaces has been investigated. A dramatic change in the emission efficiency upto 1.5% was …