Hadronic vacuum polarization contribution to the muon g-2 on Euclidean windows from tau data

Pere Masjuan, Alejandro Miranda, Pablo Roig

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Resum

We computed for the first time the τ data-driven Euclidean windows for the hadronic vacuum polarization contribution to the muon g-2. We showed that τ-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, τ-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 aμ measurement in terms of possible new physics.

Idioma originalAnglès
Número d’article216
RevistaProceedings of Science
Volum465
Estat de la publicacióPublicada - 25 de març 2025

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