Hadronic vacuum polarization contribution to the muon g-2 on Euclidean windows from tau data
We computed for the first time the $\tau$ data-driven Euclidean windows for the hadronic vacuum polarization contribution to the muon g-2. We showed that $\tau$-based results agree with the available lattice window evaluations and with the full result. On the intermediate window, where all lattice evaluations are rather precise and agree, $\tau$-based results are compatible with them. This is particularly interesting, given that the disagreement of the $e^+e^-$ data-driven result with the lattice values in this window is the main cause for their discrepancy, affecting the interpretation of the $a_\mu$ measurement in terms of possible new physics.
Authors
- Pablo Roig (ORCID: https://orcid.org/0000-0002-6612-7157)
- A. Miranda (ORCID: https://orcid.org/0000-0003-4820-0370)
- Pere Masjuan (ORCID: https://orcid.org/0000-0002-8276-413X)
Publication Details
- Published
- 2025-02-07
- DOI
- https://doi.org/10.22323/1.465.0216
- Citations
- 2
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 3.74
Funders
- Generalitat de Catalunya
- Ministerio de Ciencia e Innovación
- Institut de Física d'Altes Energies