The effect of virtual positronium formation on positron-atom scattering

G. F. Gribakin, W. A. King

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

A new method is proposed to calculate the contribution of virtual Ps formation to elastic positron-atom scattering. The calculations were performed using the many-body perturbation theory approach. It is shown that for the scattering of positrons by hydrogen and helium atoms, the virtual Ps formation contribution is about 30% and 20% of the total correlation potential, respectively. Good agreement was obtained with the results of precise variational calculations and with experimental data.
Original languageEnglish
Pages (from-to)2639-2645
JournalJournal of Physics B: Atomic Molecular and Optical Physics
Volume27
DOIs
Publication statusPublished - 28 Jun 1994

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