A 16-parts-per-trillion measurement of the antiproton-to-proton charge–mass ratio - Nature

Research published in Nature reports a high-precision comparison of the charge-to-mass ratios of protons and antiprotons measured over 1.5 years, finding no difference between the two

We acknowledge technical support by CERN, especially the Antiproton Decelerator operation group, CERN’s cryolab team and engineering department, and all other CERN groups that provide support to Antiproton Decelerator experiments. We acknowledge Y. Ding for comments in the discussion of the updated SME limits.

S. R. Erlewein, J. A. Harrington, E. J. Wursten, M. A. Bohman, A. H. Mooser, M. Wiesinger, C. Will & K. BlaumM. Fleck, T. Higuchi & Y. MatsudaInstitut für Physik, Johannes Gutenberg-Universität, Mainz, GermanyHelmholtz-Institut Mainz, Johannes Gutenberg-Universität, Mainz, Germany

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