MUonE EXPERIMENT AT SPS

Abstract

The MUonE experiment is dedicated to the precise measurement of the hadronic contribution to the anomalous magnetic moment of the muon, aµ, which may lead to the observation of a significant discrepancy with respect to the Standard Model predictions. It is planned to be operating at SPS and will allow for a precise determination of hadronic contribution to aµ employing the measurement of shape of differential cross section for the µe → µe elastic process, reaching a competitive precision below 0.5% on the leading hadronic contribution, under the condition that systematic uncertainties are well controlled. The Test Run detector geometry with a reduced setup is being prepared, following a successful test beam in 2018, aimed mainly at checking the ability to select a clean sample of elastic scattering events in view of designing the final experiment.