Direct measurement of the proton magnetic moment

J. Disciacca*, G. Gabrielse

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


The proton magnetic moment in nuclear magnetons is measured to be μ pNg/2=2.792846±0.000007, a 2.5 parts per million uncertainty. The direct determination, using a single proton in a Penning trap, demonstrates the first method that should work as well with an antiproton (p̄) as with a proton (p). This opens the way to measuring the p̄ magnetic moment (whose uncertainty has essentially not been reduced for 20 years) at least 103 times more precisely.

Original languageEnglish (US)
Article number153001
JournalPhysical review letters
Issue number15
StatePublished - Apr 10 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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