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Status of the MUonE experiment

by Pilato R. N.

Submission summary

As Contributors: Riccardo Nunzio Pilato
Preprint link: scipost_202112_00014v1
Date submitted: 2021-12-09 10:15
Submitted by: Pilato, Riccardo Nunzio
Submitted to: SciPost Physics Proceedings
Proceedings issue: 16th International Workshop on Tau Lepton Physics (TAU2021)
Academic field: Physics
  • High-Energy Physics - Experiment
Approach: Experimental


The latest measurement of the muon g-2, recently announced at Fermilab, exhibits a 4.2σ discrepancy from the Standard Model prediction. The hadronic contribution aμHLO represents the main source of uncertainty on the theoretical prediction. The MUonE experiment proposes a novel approach to determine aμHLO by measuring the effective electromagnetic coupling in the space-like region, via μ−e elastic scattering. The measurement is performed by scattering a 160 GeV muon beam, available at CERN, on atomic electrons of a low-Z target. A Test Run on a reduced detector is planned in 2022, to validate this proposal. The status of the experiment in view of the Test Run is presented.

Current status:
Editor-in-charge assigned

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Submission scipost_202112_00014v1 on 9 December 2021

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