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Threshold effects in positron scattering from isoelectronic series of atoms and molecules

Machacek, Joshua; Buckman, Stephen; Sullivan, James

Description

The observation of features, often referred to as "Wigner cusps" in a scattering cross section at the opening of a new scattering channel has been widely reported in electron scattering, and has been attributed to strong coupling between the two scattering channels. Recently a series of cusps were observed in positron scattering from the noble gases [A. C. L. Jones, Phys. Rev. Lett. 105, 073201 (2010)10.1103/PhysRevLett.105.073201]. In this case, the strong opening of the positronium formation...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
URI: http://hdl.handle.net/1885/75623
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.90.042703

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