Volume 465 - 10th International Conference on Quarks and Nuclear Physics (QNP2024) - K. Precision and New Physics
Hadronic vacuum polarization contribution to the muon g-2 on Euclidean windows from tau data
P. Masjuan, A. Miranda and P. Roig*
*: corresponding author
Full text: pdf
Pre-published on: February 07, 2025
Published on: March 25, 2025
Abstract
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.
DOI: https://doi.org/10.22323/1.465.0216
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