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$\tau$ data-driven evaluation of Euclidean windows for the hadronic vacuum polarization
- Source :
- Physics Letters B Volume 850, March 2024, 138492
- Publication Year :
- 2023
-
Abstract
- We compute for the first time the $\tau$ data-driven Euclidean windows for the hadronic vacuum polarization contribution to the muon $g-2$. We show 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.<br />Comment: 15 pages, 4 figures, 4 tables. Accepted for publication in PLB
Details
- Database :
- arXiv
- Journal :
- Physics Letters B Volume 850, March 2024, 138492
- Publication Type :
- Report
- Accession number :
- edsarx.2305.20005
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.physletb.2024.138492