Hyperfine Interactions

, 193:305 | Cite as

Planned measurement of the ground-state hyperfine splitting of antihydrogen

  • B. Juhász
  • E. Widmann


The ASACUSA collaboration at the Antiproton Decelerator at CERN is planning to measure the hyperfine splitting of the ground state of antihydrogen using an atomic beam line. This will be a measurement of the antiproton magnetic moment, and also a test of the CPT invariance. The planned experimental method and setup, including the radiofrequency resonance cavity, are described, and results of Monte Carlo simulations are shown. These simulations predict that the antihydrogen ground-state hyperfine splitting can be determined with a relative precision of ∼10 − 7.


CPT invariance Antihydrogen Hyperfine structure Atomic beam Rabi spectroscopy 


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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.Stefan Meyer Institute for Subatomic PhysicsViennaAustria

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