Change search
ReferencesLink to record
Permanent link

Direct link
Experimental and computational study of the injection of antiprotons into a positron plasma for antihydrogen production
Show others and affiliations
2013 (English)In: Physics of Plasmas, ISSN 1070-664X, Vol. 20, no 4, 043510- p.Article in journal (Refereed) Published
Abstract [en]

One of the goals of synthesizing and trapping antihydrogen is to study the validity of charge-parity-time symmetry through precision spectroscopy on the anti-atoms, but the trapping yield achieved in recent experiments must be significantly improved before this can be realized. Antihydrogen atoms are commonly produced by mixing antiprotons and positrons stored in a nested Penning-Malmberg trap, which was achieved in ALPHA by an autoresonant excitation of the antiprotons, injecting them into the positron plasma. In this work, a hybrid numerical model is developed to simulate antiproton and positron dynamics during the mixing process. The simulation is benchmarked against other numerical and analytic models, as well as experimental measurements. The autoresonant injection scheme and an alternative scheme are compared numerically over a range of plasma parameters which can be reached in current and upcoming antihydrogen experiments, and the latter scheme is seen to offer significant improvement in trapping yield as the number of available antiprotons increases.

Place, publisher, year, edition, pages
2013. Vol. 20, no 4, 043510- p.
National Category
Physical Sciences
URN: urn:nbn:se:su:diva-90385DOI: 10.1063/1.4801067ISI: 000318241900071OAI: diva2:625819


Available from: 2013-06-05 Created: 2013-06-03 Last updated: 2013-06-05Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Jonsell, Svante
By organisation
Department of Physics
In the same journal
Physics of Plasmas
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 23 hits
ReferencesLink to record
Permanent link

Direct link