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A search for Wigner cusps and resonances in positron scattering by atoms and molecules

Caradonna, Peter; Makochekanwa, Casten; Jones, Adric; Machacek, Joshua; Sullivan, James; Buckman, Stephen


Detailed elastic cross-section measurements in the vicinity of the positronium (Ps) formation threshold for He, Ne, Ar, Kr and Xe show a cusp-like feature, made visible by a small and localised depression of between (2 to 15%) of the cross-section value.

CollectionsANU Research Publications
Date published: 2012
Type: Conference paper
Source: Journal of Physics: Conference Series
DOI: 10.1088/1742-6596/388/7/072012
Access Rights: Open Access

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