Precision Measurement of the Anomalous Magnetic Moment of the Muon

Abstract

The muon g-2 experiment at Brookhaven National Laboratory measures the anomalous magnetic moment of the muon, $a_{\mu }$, very precisely. This measurement tests the Standard Model. The analysis for the data collected in 2000 (a ${\mu }^{+}$ run) is completed and the accuracy on $a_{\mu }$ is improved to 0.7 ppm, including statistical and systematic errors. The data analysis was performed blindly between the precession frequency and the field analysis groups in order to prevent a possible bias in the $a_{\mu }$ result. The result is $a_{\mu }(\exp )=11659204(7)(5)\times 10^{-10}$ (0.7 ppm). This paper features a detailed description of one of the four analyses and an update of the theory.

arXiv commentInvited talk at SLAC Summer Institute, Stanford, CA, August 2002 (SSI-TW08), 16 pages, Latex, 15 Postscript figures, uses ssi.sty