Introduction to Positron Scattering

The dynamics of positron scattering from the ground state of lithium, sodium and potassium atoms in hot and dense plasmas has been investigated by applying a two-state approximation that includes elastic scattering and rearrangement scattering.

Positron scattering on atomic and molecular targets is a two-centre problem due to the possibility of rearrangement (Ps-formation) processes.

Results from the application of our optical potential and relativistic optical potential models to positron scattering from gas-phase zinc (Zn) and cadmium (Cd) are presented.

The Differential Cross Sections (DCS's), Total Cross Sections (TCS's) and Momentum Transfer Cross Sections (MTCS's) of electron and positron scattering by radium and radon atoms were calculated in the range of energy (5–500) eV using a total potential consisting of combining the static, exchange and polarization potentials at long distances.

Studies on electron and positron scattering from acetylene are very important for their applications in the plasma and astronomical environments.

Differential, integral, momentum-transfer, viscosity, inelastic and total cross sections as well as spin asymmetries are calculated for electron and positron scattering from the gold atom with nuclear spin 3 2.

We report measurements of low energy positron scattering from neon, with the first measurements of absolute differential cross sections (DCSs) and of state-selective electronic excitation.

The positron scattering by the Mn(.

We present a critical analysis of available experimental and theoretical cross section data for positron scattering from atomic systems.

A resonance of the annihilation channel of an electron-positron scattering in the laser field with intensity $I\lesssim 10^{16}\mathrm{W}/\mathrm{cm}^{2}$ is investigated theoretically.

Cross sections for positron scattering from molecular nitrogen are reported for energies below the positronium formation threshold.

The results are compared with the existing benchmark calculations for positron scattering on H and He + targets.

In this paper two theoretical methodologies, the Schwinger multichannel (SMC) method and the independent atom model with the screening corrected additivity rule (IAM-SCAR), were employed to study positron scattering by benzene over a broad impact energy range.

Here we consider electron-positron scattering, the Coulomb scattering of electrons and positrons off ions, and relativistic $e^\pm$-ion bremsstrahlung.

Results from the application of our optical potential and relativistic optical potential models to positron scattering from gas-phase beryllium (Be) and magnesium (Mg) are presented.

To the best of our knowledge, for positron scattering, there are no experimental data available in the literature.

This article presents positron scattering cross sections for simple hydrocarbons, viz.

Positron scattering cross sections, used for modelling particle transport in various media, are difficult to gather experimentally.

We further analyze our results by comparing the positron scattering versus positron-electron pairing components of the amplitude for better insights.

The annihilation spectrum for positron scattering by the amino acid proline was calculated using local complex potential theory combined with the time-dependent quantum wave packet method.