CERN Accelerating science

Article
Report number arXiv:1504.05523
Title Observation of Hyperfine Transitions in Trapped Ground-State Antihydrogen
Author(s) Olin, Arthur (Victoria U. ; TRIUMF)
Collaboration for the ALPHA Collaboration
Publication 2015-04-23
Imprint 21 Apr 2015
Number of pages 6
In: Hyperfine Interact. 233 (2015) 41-46
In: 5th International Conference on Exotic Atoms and Related Topics, Vienna, Austria, 15 - 19 Sep 2014, pp.41-46
DOI 10.1007/s10751-015-1167-3
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN AD ; ALPHA AD-5
Abstract This paper discusses the first observation of stimulated magnetic resonance transitions between the hyperfine levels of trapped ground state atomic antihydrogen, confirming its presence in the ALPHA apparatus. Our observations show that these transitions are consistent with the values in hydrogen to within 4 parts in $10^3$. Simulations of the trapped antiatoms in a microwave field are consistent with our measurements.
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 Record created 2015-04-22, last modified 2023-03-14


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