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On the formation of trappable antihydrogen
Stockholm University, Faculty of Science, Department of Physics.
Number of Authors: 22018 (English)In: New Journal of Physics, ISSN 1367-2630, E-ISSN 1367-2630, Vol. 20, article id 043049Article in journal (Refereed) Published
Abstract [en]

The formation of antihydrogen atoms from antiprotons injected into a positron plasma is simulated, focussing on the fraction that fulfil the conditions necessary for confinement of anti-atoms in a magnetic minimum trap. Trapping fractions of around 10(-4) are found under conditions similar to those used in recent experiments, and in reasonable accord with their results. We have studied the behaviour of the trapped fraction at various positron plasma densities and temperatures and found that collisional effects play a beneficial role via a redistribution of the antihydrogen magnetic moment, allowing enhancements of the yield of low-field seeking states that are amenable to trapping.

Place, publisher, year, edition, pages
2018. Vol. 20, article id 043049
Keywords [en]
antihydrogen, antiprotons, magnetic trapping, positron, plasma
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-156723DOI: 10.1088/1367-2630/aabc71ISI: 000430603800005OAI: oai:DiVA.org:su-156723DiVA, id: diva2:1220201
Available from: 2018-06-18 Created: 2018-06-18 Last updated: 2018-06-18Bibliographically approved

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