The muon g-2 experiment at Fermilab

Abstract

A new measurement of the anomalous magnetic moment of the muon, $a_{\mu }\equiv (g-2)/2$, will be performed at the Fermi National Accelerator Laboratory with data taking beginning in 2017. The most recent measurement, performed at Brookhaven National Laboratory and completed in 2001, shows a 3.5 standard deviation discrepancy with the standard model prediction of $a_{\mu }$. The new measurement will accumulate 21 times those statistics using upgraded detection and storage ring systems, enabling a measurement of $a_{\mu }$ to 140 ppb, a factor of 4 improvement in the uncertainty the previous measurement. This improvement in precision, combined with recent and ongoing improvements in the evaluation of the QCD contributions to the $a_{\mu }$, could provide a 7.5$\sigma$ discrepancy from the standard model if the current difference between experiment and theory is confirmed, a possible indication of new physics.

Proceedings of NUFACT2016

References in corpus (3)

• GUT-inspired SUSY and the muon g-2 anomaly: prospects for LHC 14 TeV
• Studies of an array of PbF2 Cherenkov crystals with large-area SiPM readout
• Test of candidate light distributors for the muon (g$-$2) laser calibration system

Cited by in corpus (1)

• Exploring Non-Holomorphic Soft Terms in the Framework of Gauge Mediated Supersymmetry Breaking