New Measurement of the Anomalous Magnetic Moment of the Positive Muon
- 22 February 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 82 (8), 1632-1635
- https://doi.org/10.1103/physrevlett.82.1632
Abstract
The muon anomalous magnetic moment has been measured in a new experiment at Brookhaven. Polarized muons were stored in a superferric ring, and the angular frequency difference, , between the spin precession and orbital frequencies was determined by measuring the time distribution of high-energy decay positrons. The ratio of to the Larmor precession frequency of free protons, , in the storage-ring magnetic field was measured. We find . With this gives ( ), in good agreement with the previous CERN measurements for and and of approximately the same precision.
Keywords
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