• The charge-to-mass ratio — an important property of particles — can be measured by observing the oscillation of a particle in a magnetic field. Based on the new CERN's experiment, there was no difference between the proton and the antiproton, with a four-fold improvement in the energy resolution compared with previous measurements.
  • The work has implications for what is known as the weak equivalence principle --the idea that all particles will be affected by gravity in the same way, regardless of their mass and charge. The team used their findings to calculate that within about one part per million, antimatter and matter behave in the same way with respect to gravity.
  • Using more stable magnetic fields and other approaches, the researchers plan to achieve measurements that are at least 10-100 times more precise than what they found so far.

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