The first absolute experimental determinations of the differential cross sections for the
formation of ground-state positronium are presented for He, Ar, H 2, and CO 2 near 0° …

State-selective total and angular differential cross sections for positronium formation are
presented in the collision of positron with helium atoms in their ground state by using the …

Due to the dominant electron capture by positrons from the molecular shell and the spatial
dephasing across the shell width, a powerful diffraction effect universally underlies the …

Both the post and prior versions of the four-body Coulomb–Born distorted wave (CBDW-4B)
approximation are applied to calculate the single-electron capture differential and integral …

A four-body theoretical study of the single charge transfer process in collision of energetic
alpha ions with helium atoms in their ground states is presented. The model utilizes the …

We present the angular distribution of the ejected electron for single ionization of He by fast
proton impact. A four-body formalism of the three-Coulomb wave is applied to calculate the …

Abstract The four-body Coulomb–Born distorted wave approximation is applied to
investigate the integral as well as projectile angular-differential cross sections for single …

The frozen core approximation has been successfully used for many years to model 4-body
collisions as 3-body collisions. We present a comprehensive comparison of 3-body and 4 …

The first-order correct-boundary Coulomb–Born distorted-wave approximation is used to
study the double-electron capture by protons from the ground-state helium atoms at …

We previously predicted [PA Hervieux, Phys. Rev. A 95, 020701 (R)(2017) 2469-9926
10.1103/PhysRevA. 95.020701] that, owing to predominant electron capture by incoming …