The BASE experiment breaks its own precision measurement record of antiproton’s magnetic moment

Stefan Ulmer - Spokeperson of BASE experiment
Stefan Ulmer - Spokeperson of BASE experiment (Image: CERN)

The BASE collaboration, publishes today in Nature new measurement of the magnetic moment of the antiproton, with a precision exceeding that of the proton. Thanks to a new method involving simultaneous measurements made on two separately-trapped antiprotons in two Penning traps, BASE succeeded in breaking its own record presented last January

The magnetic moment of the antiproton is found to be 2.792 847 344 1(42), to be compared to the figure of 2.792 847 350(9) that the same collaboration of researchers found for the proton in 2014, at the BASE companion experiment at Mainz, in Germany.

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