Year: 2025
Type: conference-paper
Abstract: The MUonE experiment aims to measure the hadronic vacuum polarization contribution to the muon anomaly $a_\mu^{HLO}$ better than 1%. An innovative approach is proposed, using elastic scattering of 160 GeV muons on atomic electrons in a low-Z target. A precision of 10 ppm on the angular distribution of the scattering particles in the muon-electron scattering process is required. The M2 beamline at CERN provides the necessary intensity to reach the statistical goal in few years of data taking. In summer 2024 a Proposal has been sent to the CERN SPSC asking for the Phase 1 of MUonE to be performed with a small scale experiment in 2025. This is expected to obtain a first measurement of the hadronic contribution to the running QED coupling, $Δ𝛼_{ℎ𝑎𝑑}$ , with a 20% statistical uncertainty. We will present the progress achieved in the last years, the current status, and the future plans of the experiment.
DOI: 10.22323/1.489.0045
Author: Eugenia Spedicato
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Funder: European Commission
OpenAlex ID: W4417041670
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