12–15 Nov 2024
Palazzo Hercolani
Europe/Rome timezone

Status of the MUonE experiment

13 Nov 2024, 16:15
13m
Aula Poeti (Palazzo Hercolani)

Aula Poeti

Palazzo Hercolani

Strada Maggiore 45

Speaker

Eugenia Spedicato (Istituto Nazionale di Fisica Nucleare)

Description

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 10ppm 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, $\Delta\alpha_{had}$, 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.

Primary author

Eugenia Spedicato (Istituto Nazionale di Fisica Nucleare)

Presentation materials