Compatibility between $e^+e^-$ and $\tau$ decay data in the di-pion channel and implications for $a_\mu^\mathrm{SM}$ and CVC tests

Autor:	Miranda, Alejandro
Rok vydání:	2024
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice
Druh dokumentu:	Working Paper
Popis:	We have revisited the isospin-breaking corrections relating $\sigma(e^+e^-\to\pi^+\pi^-)$ and $\Gamma(\tau^-\to\pi^-\pi^0\nu_\tau)$. 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. Comment: Comments: 6 pages, 2 figures, 2 tables. Contribution to the proceedings of the 10th International Conference on Quarks and Nuclear Physics (QNP2024), 8-12 July, 2024. Barcelona, Spain
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2411.10226 Zobrazit plný text záznamu View this record from Arxiv