Electron/positron collisions with positronium

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8 Citations (Scopus)


We report results for e(+/-)-Ps(Is) scattering in the energy range up to 80 eV calculated in 9-state and 30-state coupled pseudostate approximations. Cross-sections are presented for elastic scattering, ortho-para conversion, discrete excitation, ionization and total scattering. Resonances associated with the Ps(n = 2) threshold are also examined and their positions and widths determined. Very good agreement is obtained with the variational calculations of Ward et al. [J. Phys. B 20 (1987) 127] below 5.1 eV. (C) 2004 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)124-128
Number of pages5
JournalNuclear Instruments & Methods in Physics Research - Section B: Beam Interactions with Materials and Atoms
Issue number1-4
Publication statusPublished - Jul 2004

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces


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