SciPost Submission Page
An alternative evaluation of the leading-order hadronic contribution to the muon $g\!-\!2$ with MUonE
by Riccardo Nunzio Pilato
Submission summary
| Authors (as registered SciPost users): | Riccardo Nunzio Pilato |
| Submission information | |
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| Preprint Link: | scipost_202406_00061v1 (pdf) |
| Date accepted: | 2024-12-18 |
| Date submitted: | 2024-06-28 11:26 |
| Submitted by: | Pilato, Riccardo Nunzio |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 17th International Workshop on Tau Lepton Physics (TAU2023) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
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.
Current status:
Editorial decision:
For Journal SciPost Physics Proceedings: Publish
(status: Editorial decision fixed and (if required) accepted by authors)
Reports on this Submission
Report #1 by Swagato Banerjee (Referee 1) on 2024-12-3 (Invited Report)
Report
The MUonE experiment proposes a novel method to evaluate the leading-order hadronic contribution to the muon's magnetic anomaly via muon-electron elastic scattering. This approach addresses limitations in traditional methods by leveraging precise measurements of the hadronic running of the QED coupling. A test run at CERN in 2023 demonstrated the feasibility of identifying elastic events with minimal systematic error, paving the way for future experiments. The goal is to achieve a competitive measurement and resolve theoretical tensions, ultimately supporting more accurate comparisons of theory and experiment.
Recommendation
Publish (surpasses expectations and criteria for this Journal; among top 10%)