Measurement of the Muon Magnetic Anomaly $$\boldsymbol{a}_{\boldsymbol{\mu}}$$ in the Muon $$\boldsymbol{g-2}$$ Experiment at Fermilab
- INFN, Pisa
The Fermilab Muon g-2 experiment measures the muon anomalous magnetic moment with high precision. Together with recent improvements on the theory front, the first results of the experiment confirm the long-standing discrepancy between the experimental measurements and the Standard Model predictions. The observed value of $$a_{\mu}({\textrm{FNAL}})=116\,592\,040(54)\times 10^{-11}(\text{0.46 ppm})$$, combined with the previous experimental measurement, results in a discrepancy of $$(251\pm 59)\times 10^{-11}$$ with the theoretical prediction, corresponding to $$4.2\sigma$$. This note presents the first results, the current status and the future prospects of the Muon $g-2$ experiment at Fermilab.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- Muon g-2 Fermilab E989
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 2228304
- Report Number(s):
- FERMILAB-CONF-23-637-V; arXiv:2311.12730; oai:inspirehep.net:2149873
- Journal Information:
- Moscow Univ.Phys.Bull., Vol. 77, Issue 2
- Country of Publication:
- United States
- Language:
- English