Baker, CJ, Bertsche, W, Capra, A, Cesar, CL, Charlton, M, Mathad, A Cridland, Eriksson, S, Evans, A, Evetts, N, Fabbri, S et al (show 37 more authors)
(2021)
Sympathetic cooling of positrons to cryogenic temperatures for antihydrogen production.
NATURE COMMUNICATIONS, 12 (1).
6139-.
Text
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Abstract
The positron, the antiparticle of the electron, predicted by Dirac in 1931 and discovered by Anderson in 1933, plays a key role in many scientific and everyday endeavours. Notably, the positron is a constituent of antihydrogen, the only long-lived neutral antimatter bound state that can currently be synthesized at low energy, presenting a prominent system for testing fundamental symmetries with high precision. Here, we report on the use of laser cooled Be<sup>+</sup> ions to sympathetically cool a large and dense plasma of positrons to directly measured temperatures below 7 K in a Penning trap for antihydrogen synthesis. This will likely herald a significant increase in the amount of antihydrogen available for experimentation, thus facilitating further improvements in studies of fundamental symmetries.
Item Type: | Article |
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Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
Depositing User: | Symplectic Admin |
Date Deposited: | 04 Feb 2022 08:23 |
Last Modified: | 18 Jan 2023 21:14 |
DOI: | 10.1038/s41467-021-26086-1 |
Open Access URL: | https://www.nature.com/articles/s41467-021-26086-1 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3148153 |