Volume 465 -
10th International Conference on Quarks and Nuclear Physics
(QNP2024) -
K. Precision and New Physics
Compatibility between π + π β and π decay data in the di-pion channel and implications for π πΊπ΄ π and CVC tests
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Pre-published on:
February 07, 2025
Published on:
March 25, 2025
Abstract
We have revisited the isospin-breaking corrections relating $e^+e^-$ and $\Gamma(\tau^-\to\pi^-\pi^0\nu_\tau)$~\cite{Castro:2024prg}. We confirm that the associated uncertainty is under control, so that tau data can also be used to predict accurately the leading hadronic contribution to the muon anomalous magnetic moment and precision conserved vector current tests can be carried out.
DOI: https://doi.org/10.22323/1.465.0215
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.