Theory for the MUonE experiment

Abstract

The MUonE experiment aims at providing a new independent evaluation of the leading hadronic contribution to the muon anomalous magnetic moment. The proposed method is based on the measurement of the running of the QED coupling in the space-like momentum region, through the elastic scattering of high-energy muons on atomic electrons. In this proceeding, the status of the theoretical effort for the MUonE experiment is reviewed. In order to achieve a competitive determination, the differential cross section of muon-electron scattering must be computed with an unprecedented precision of 10 ppm, which requires at least next-to-next-leading order corrections and the resummation of large logarithms. In addition, the simulation of the experiment needs an exhaustive theoretical description of the possible background processes, such as the lepton pair production in muon-nucleus scattering. All these processes must be implemented in a fully exclusive Monte Carlo event generator in order to be used in the MUonE data analysis.

6 pages, 2 figures, contribution to EPS-HEP2023

References in corpus (8)

• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm
• Matching perturbative and Parton Shower corrections to Bhabha process at flavour factories
• A new approach to evaluate the leading hadronic corrections to the muon g-2
• Soft Photon Radiation in Particle Decays in SHERPA
• Electroweak two-loop corrections to the effective weak mixing angle
• Massive vector form factors to three loops
• Muon-electron scattering at NNLO: the hadronic corrections
• Single ${\pi }^0$ production in $\mu e$ scattering at MUonE