Brawley, SJ;
Fayer, SE;
Shipman, M;
Laricchia, G;
(2015)
Positronium production and scattering below its break-up threshold.
[Dataset].
UCL Department of Physics and Astronomy: London, UK.
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Abstract
Recent findings on the similarity between electron and positronium scattering at the same velocity [Brawley et al. Science 330 (2010) 789] have guided us towards the realization of a detectable flux of positronium atoms at beam energies five times lower than previously obtained, enabling total cross sections to be measured in the energy range \sim(1 -- 7)\,eV for the first time. In collision with Ar and Xe, the total cross-sections of positronium are found to be smallest at the lowest energy probed, approaching those of the Ramsauer-Townsend minima for electron projectiles. Additional structure has been observed in the case of positronium scattering at incident energies around 5\,eV.
Type: | Dataset |
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Title: | Positronium production and scattering below its break-up threshold |
Open access status: | An open access version is available from UCL Discovery |
Publisher version: | http://dx.doi.org/10.14324/000.ds.1472510 |
Additional information: | Original data in figures 1 and 2 from the publication: S. J. Brawley, S. E. Fayer, M. Shipman, and G. Laricchia (2015)Positronium production and scattering below its break-up threshold, Physical Review Letters (in press) |
UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
URI: | https://discovery.ucl.ac.uk/id/eprint/1472510 |
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