Improved Evaluation of the Electroweak Contribution to Muon g-2
- Author(s)
- Martin Hoferichter, Jan Lüdtke, Luca Naterop, Massimiliano Procura, Peter Stoffer
- Abstract
A precise evaluation of the electroweak contribution to the anomalous magnetic moment of the muon requires control over all aspects of the standard model, ranging from Higgs physics, over multiloop computations for bosonic and (heavy-)fermion diagrams, to nonperturbative effects in the presence of light quarks. Currently, the dominant uncertainties arise from such hadronic effects in the vector-vector-axial-vector three-point function, an improved understanding of which has recently emerged in the context of hadronic light-by-light scattering. Profiting from these developments as well as new perturbative and nonperturbative input for the charm contribution, we obtain aμEW=154.4(4)×10-11.
- Organisation(s)
- Faculty of Physics, Particle Physics
- External organisation(s)
- Universität Bern, Paul Scherrer Institute, Universität Zürich (UZH)
- Journal
- Physical review letters
- Volume
- 134
- No. of pages
- 8
- ISSN
- 0031-9007
- DOI
- https://doi.org/10.48550/arXiv.2503.04883
- Publication date
- 05-2025
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103012 High energy physics
- ASJC Scopus subject areas
- General Physics and Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/7aca8f1d-65c2-48bb-8dd6-0afcb23c917c