New $\tau$-based evaluation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment
We revisit the radiative corrections to the $\tau^-\to\pi^-\pi^0\nu_\tau(\gamma)$ decays using Resonance Chiral Theory for the structure-dependent part. This channel is the most important one to understand the hadronic vacuum polarization piece of the muon g-2, which dominates the uncertainty of its...
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| Format: | Article |
| Language: | English |
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2025-07-01
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| Series: | SciPost Physics Proceedings |
| Online Access: | https://scipost.org/SciPostPhysProc.16.032 |
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| author | Jesús Alejandro Miranda Hernández, Pablo Roig Garcés |
| author_facet | Jesús Alejandro Miranda Hernández, Pablo Roig Garcés |
| author_sort | Jesús Alejandro Miranda Hernández, Pablo Roig Garcés |
| collection | DOAJ |
| description | We revisit the radiative corrections to the $\tau^-\to\pi^-\pi^0\nu_\tau(\gamma)$ decays using Resonance Chiral Theory for the structure-dependent part. This channel is the most important one to understand the hadronic vacuum polarization piece of the muon g-2, which dominates the uncertainty of its data-driven prediction in the Standard Model. Using our results, the discrepancy between theory and experiment for this observable is reduced to $\sim2.2\sigma$. |
| format | Article |
| id | doaj-art-71a17b3dd7b340b985d43ca847d67665 |
| institution | DOAJ |
| issn | 2666-4003 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SciPost |
| record_format | Article |
| series | SciPost Physics Proceedings |
| spelling | doaj-art-71a17b3dd7b340b985d43ca847d676652025-08-20T02:39:15ZengSciPostSciPost Physics Proceedings2666-40032025-07-011603210.21468/SciPostPhysProc.16.032New $\tau$-based evaluation of the hadronic vacuum polarization contribution to the muon anomalous magnetic momentJesús Alejandro Miranda Hernández, Pablo Roig GarcésWe revisit the radiative corrections to the $\tau^-\to\pi^-\pi^0\nu_\tau(\gamma)$ decays using Resonance Chiral Theory for the structure-dependent part. This channel is the most important one to understand the hadronic vacuum polarization piece of the muon g-2, which dominates the uncertainty of its data-driven prediction in the Standard Model. Using our results, the discrepancy between theory and experiment for this observable is reduced to $\sim2.2\sigma$.https://scipost.org/SciPostPhysProc.16.032 |
| spellingShingle | Jesús Alejandro Miranda Hernández, Pablo Roig Garcés New $\tau$-based evaluation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment SciPost Physics Proceedings |
| title | New $\tau$-based evaluation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment |
| title_full | New $\tau$-based evaluation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment |
| title_fullStr | New $\tau$-based evaluation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment |
| title_full_unstemmed | New $\tau$-based evaluation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment |
| title_short | New $\tau$-based evaluation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment |
| title_sort | new tau based evaluation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment |
| url | https://scipost.org/SciPostPhysProc.16.032 |
| work_keys_str_mv | AT jesusalejandromirandahernandezpabloroiggarces newtaubasedevaluationofthehadronicvacuumpolarizationcontributiontothemuonanomalousmagneticmoment |