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The elastic scattering of positrons from beryllium and magnesium in the low-energy region

Bromley, Michael W. J., Mitroy, Jim and Ryzhikh, G. G. (1998). The elastic scattering of positrons from beryllium and magnesium in the low-energy region. Journal of Physics B: Atomic, Molecular and Optical Physics,31(19):4449-4458.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 15 times in Scopus Article | Citations

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Title The elastic scattering of positrons from beryllium and magnesium in the low-energy region
Author Bromley, Michael W. J.
Mitroy, Jim
Ryzhikh, G. G.
Journal Name Journal of Physics B: Atomic, Molecular and Optical Physics
Publication Date 1998
Volume Number 31
Issue Number 19
ISSN 0953-4075   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-0000790089
Start Page 4449
End Page 4458
Total Pages 10
Place of Publication Bristol, UK
Publisher IOP Publishing
HERDC Category C1 - Journal Article (DEST)
Abstract The elastic scattering of positrons from beryllium and magnesium is studied by using a simple model potential to represent the interaction between the positron and target atoms. The model is tuned by adjusting the free parameters to reproduce previous predictions of the positron binding energies of the and ground states. An indication of the theoretical uncertainty in the derived phase shifts and cross sections is given by running a series of calculations with slightly different model potentials. The estimated scattering lengths are and for Be and Mg, respectively. The total cross section for positron-magnesium scattering constructed by adding the inelastic cross section computed with many-body perturbation theory to the present elastic cross section is broadly consistent with the experimental data.
DOI http://dx.doi.org/10.1088/0953-4075/31/19/027   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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