The muon g-2 experiment at Fermilab
- Kentucky U.
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.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1342215
- Report Number(s):
- FERMILAB-CONF-16-529-E; arXiv:1611.04964; 1498085
- Resource Relation:
- Conference: 18th International Workshop on Neutrino Factories and Future Neutrino Facilities Search, Quy Nhon, Vietnam, 08/21-08/27/2016
- Country of Publication:
- United States
- Language:
- English
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