The New Muon g-2 experiment at Fermilab

Abstract

There is a long standing discrepancy between the Standard Model prediction for the muon g-2 and the value measured by the Brookhaven E821 Experiment. At present the discrepancy stands at about three standard deviations, with a comparable accuracy between experiment and theory. Two new proposals -- at Fermilab and J-PARC -- plan to improve the experimental uncertainty by a factor of 4, and it is expected that there will be a significant reduction in the uncertainty of the Standard Model prediction. I will review the status of the planned experiment at Fermilab, E989, which will analyse 21 times more muons than the BNL experiment and discuss how the systematic uncertainty will be reduced by a factor of 3 such that a precision of 0.14 ppm can be achieved.

5 pages, 4 figures, Contribution to the proceedings of 37th International Conference on High Energy Physics (ICHEP) in Valencia, Spain, July 2-9 2014. arXiv admin note: substantial text overlap with arXiv:1203.1501

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• The Electroweak Supersymmetry (EWSUSY) from the GmSUGRA in the MSSM
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• Mini-Proceedings, 16th meeting of the Working Group on Radiative Corrections and MC Generators for Low Energies
• Recent Developments of Muon g-2 from Lattice QCD
• Measurements of the Hadronic Cross Section and of Meson Transition Form Factors at BESIII for an improved Standard Model Prediction of (g-2)mu
• Geometry Optimization of a Muon-Electron Scattering Experiment