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Positronium formation from valence and inner shells in noble gas atoms

L. J. M. Dunlop·G. F. Gribakin
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Abstract

When recent experimental positronium (Ps) formation cross sections in noble gases have been compared with the most up-to date theoretical studies, the agreement is qualitative, but not quantitative. In this paper we re-examine this process and show that at low energies Ps formation must be treated nonperturbatively. We also look at Ps formation with inner shell electrons.

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L. J. M. Dunlop, G. F. Gribakin. 2005-12-19. Positronium formation from valence and inner shells in noble gas atoms. https://doi.org/10.1016/j.nimb.2006.01.068

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