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An alternative evaluation of the leading-order hadronic contribution to the muon $g\!-\!2$ with MUonE

by Riccardo Nunzio Pilato

Submission summary

Abstract

The MUonE experiment proposes a novel approach to determine the hadronic contribution to the muon $g\!-\!2$, $a_\mu^\text{HLO}$, based on the measurement of the hadronic running of the QED coupling through the analysis of $\mu-e$ elastic scattering events. This could clarify the tensions in the current evaluations of $a_\mu^\text{HLO}$, which are limiting the comparison between theory and experiment for the muon $g\!-\!2$. The measurement will be performed at CERN’s North Area by scattering a 160 GeV muon beam on the atomic electrons of a low-Z target. The status and future plans of the experiment will be presented. Furthermore, an alternative method to extract $a_\mu^\text{HLO}$ from MUonE data will be discussed.