Journal
HYPERFINE INTERACTIONS
Volume 240, Issue -, Pages -Publisher
SPRINGER INT PUBL AG
DOI: 10.1007/s10751-018-1536-9
Keywords
Antihydrogen; CPT; Hyperfine spectroscopy; Matter-antimatter symmetry
Funding
- European Research Council under European Union's Seventh Framework Programme (FP7/2007-2013)/ERC Grant [291242]
- Austrian Ministry of Science and Research
- Austrian Science Fund (FWF) [W1252-N27]
- MEXT [24000008]
- RIKEN Pioneering Project
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The ASACUSA collaboration at the Antiproton Decelerator of CERN aims at a precise measurement of the antihydrogen ground-state hyperfine structure as a test of the fundamental CPT symmetry. A beam of antihydrogen atoms is formed in a CUSP trap, undergoes Rabi-type spectroscopy and is detected downstream in a dedicated antihydrogen detector. In parallel measurements using a polarized hydrogen beam are being performed to commission the spectroscopy apparatus and to perform measurements of parameters of the Standard Model Extension (SME). The current status of antihydrogen spectroscopy is reviewed and progress of ASACUSA is presented.
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