Abstract
The ASACUSA collaboration at CERN-AD has recently submitted a proposal to measure the hyperfine splitting of the ground state of antihydrogen in an atomic beam line. The spectrometer will consist of two sextupoles for spin selection and analysis, and a microwave cavity to flip the spin of the antihydrogen atoms. Numerical simulations show that such an experiment is feasible if ~200 antihydrogen atoms per second can be produced in the ground state, and that an accuracy of better than 10–7 can be reached. This measurement will be a precise test of the CPT invariance.
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References
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B. Juhász serves as one of the authors of this article on behalf of the ASACUSA collaboration.
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Juhász, B., Widmann, E. Proposed measurement of the ground-state hyperfine structure of antihydrogen. Hyperfine Interact 172, 107–110 (2006). https://doi.org/10.1007/s10751-007-9530-7
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DOI: https://doi.org/10.1007/s10751-007-9530-7