PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Quark and Lepton Flavour Physics
The muon (g-2) Standard-Model prediction and GeV-scale new physics
L.J.M. Darmé*, G. Grilli di Cortona and E. Nardi
Full text: pdf
Pre-published on: December 01, 2022
Published on:
Abstract
The discrepancy between the standard model (SM) prediction for the muon anomalous magnetic moment and the experimental result is accompanied by other anomalies. A crucial input for the prediction is the hadronic vacuum polarization inferred from hadronic data. However, the two most accurate determinations from KLOE and BaBar disagree by almost $3\sigma$. Additionally, the combined data-driven result also disagrees with the most precise lattice determinations in the intermediate energy window at the level of $\sim 4.2\sigma$. We show with a simple model that all these discrepancies could be accounted for by a new boson produced resonantly around the KLOE centre-of-mass energy and decaying promptly yielding lepton pairs and missing energy in the final states, while complying with all phenomenological constraints.
DOI: https://doi.org/10.22323/1.414.0707
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.