PoS - Proceedings of Science
Volume 449 - The European Physical Society Conference on High Energy Physics (EPS-HEP2023) - T07 Top and Electroweak Physics
The MUonE experiment: mu-e elastic scattering as a key to understand the muon g-2 puzzle
R.N. Pilato*  on behalf of the MUonE collaboration
Full text: pdf
Pre-published on: February 08, 2024
Published on: March 21, 2024
The MUonE experiment aims to measure the differential cross section of the $\mu \ e$ elastic scattering using the CERN SPS muon beam with mean energy of 160 GeV onto atomic electrons of a low-Z target. Thanks to the intense M2 beam with in-spill intensity of $5\times10^7$ muons/s, a precise measurement of the scattering angles allows to extract the running QED coupling, and by a novel approach the leading hadronic contribution to the muon anomalous magnetic moment. This determination will be completely independent from the usual data-driven method, based on measurements of the R-ratio in $e^+e^-$ annihilations, and could clarify the discrepancy between these results and the theory-based estimates from recent lattice QCD calculations.
\newline The MUonE challenge resides in the control of theoretical and experimental uncertainties to an unprecedented level of precision for a scattering experiment. A pilot run was held this summer, operating for the first time two tracking stations and a prototype electromagnetic calorimeter connected to a triggerless readout system. The status and plans of the experiment will be presented.
DOI: https://doi.org/10.22323/1.449.0305
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.