Hadronic vacuum polarization contribution to the muon g-2 on Euclidean windows from tau data
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866916605501374464 |
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| author | Masjuan, Pere Miranda, Alejandro Roig, Pablo |
| author_facet | Masjuan, Pere Miranda, Alejandro Roig, Pablo |
| contents | 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 $a_μ$ measurement in terms of possible new physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_09811 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Hadronic vacuum polarization contribution to the muon g-2 on Euclidean windows from tau data Masjuan, Pere Miranda, Alejandro Roig, Pablo High Energy Physics - Phenomenology 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 $a_μ$ measurement in terms of possible new physics. |
| title | Hadronic vacuum polarization contribution to the muon g-2 on Euclidean windows from tau data |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2411.09811 |