output
20022025
most citedThe Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package

5k citations

Showing 2017 · physics.atom-phShow all

12 papers · 2 filters

physics.atom-ph201714 cited

Calculations of positronium-atom scattering using a spherical cavity

A. R. Swann, G. F. Gribakin

Positronium (Ps) scattering by noble-gas atoms (He, Ne, Ar, Kr, and Xe) is studied in the frozen-target approximation and with inclusion of the van der Waals interaction. Single-pa…

physics.atom-ph201723 cited

Mode coupling and multiquantum vibrational excitations in Feshbach-resonant positron annihilation in molecules

G. F. Gribakin, J. F. Stanton, J. R. Danielson +2

The dominant mechanism of low-energy positron annihilation in polyatomic molecules is through positron capture in vibrational Feshbach resonances (VFR). In this paper we investigat…

physics.atom-ph20175 cited

Photoionisation of Ca ions in the valence-energy region 20eV~--~56eV : experiment and theory

A Mueller, S Schippers, R A Phaneuf +8

Relative cross sections for the valence shell photoionisation (PI) of ground level and metastable Ca ions were measured with high energy resolution by usi…

physics.atom-ph201727 cited

Vibrational Feshbach Resonances Mediated by Nondipole Positron-Molecule Interactions

M. R. Natisin, J. R. Danielson, G. F. Gribakin +2

Measurements of energy-resolved positron-molecule annihilation show the existence of positron binding and vibrational Feshbach resonances. The existing theory describes this phenom…

physics.atom-ph201713 cited

Positron cooling and annihilation in noble gases

D. G. Green

Understanding the dynamics of positron cooling in gases, including the fraction of positrons surviving to thermalisation, is critical for accurate interpretation of positron lifeti…

physics.atom-ph201710 cited

Probing positron cooling in noble gases via annihilation spectra

D. G. Green

spectra for positron annihilation in noble-gas atoms are calculated using many-body theory for positron momenta up to the positronium-formation threshold. This data is used, to…