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Please use this identifier to cite or link to this item: http://hdl.handle.net/2328/26346

Title: Total cross sections for positron scattering from H2 at low energies
Authors: Zecca, Antonio
Chiari, Luca
Sarkar, Anindya
Nixon, Kate Louise
Brunger, Michael James
Keywords: Physical chemistry
Hydrogen
Positron scattering
Issue Date: 2009
Publisher: The American Physical Society
Citation: Zecca, A., Chiari, L., Sarkar, A., Nixon, K.L., & Brunger, M.J., 2009. Total cross sections for positron scattering from H2 at low energies. Physical Review A, 80(3), 032702-1-032702-5.
Abstract: This paper revisits positron scattering from molecular hydrogen, in an attempt to provide accurate total cross-section data against which theoretical calculations might be benchmarked. The present data were measured over the energy range 0.1–50 eV and, where possible, are compared to results from previous experiments and calculations. Agreement with the earlier data was typically very good at energies above 10 eV but becomes progressively more marginal as we go to lower energies. None of the current theories quantitatively reproduce our measurements over the entire energy range, although at a qualitative level the main features driving the scattering dynamics are apparent.
URI: http://hdl.handle.net/2328/26346
ISSN: 1050-2947
Appears in Collections:Chemistry, Physics and Earth Sciences - Collected Works

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