News from the Muon (g-2) Experiment at BNL
M. Deile (for the Muon g-2 Collaboration)
TL;DR
The Muon (g-2) experiment at BNL measured the muon's magnetic moment anomaly with high precision, confirming previous results and highlighting a potential discrepancy with Standard Model predictions.
Contribution
This paper reports a new high-precision measurement of the muon g-2 anomaly, based on 2000 data, with implications for physics beyond the Standard Model.
Findings
Measurement uncertainty of 0.7 ppm
Results agree with previous measurements
Discrepancy with Standard Model at 1.6 to 3.0 sigma
Abstract
The magnetic moment anomaly a_mu = (g_mu - 2) / 2 of the positive muon has been measured at the Brookhaven Alternating Gradient Synchrotron with an uncertainty of 0.7 ppm. The new result, based on data taken in 2000, agrees well with previous measurements. Standard Model evaluations currently differ from the experimental result by 1.6 to 3.0 standard deviations.
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