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New τ-based evaluation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment
by Jesús Alejandro Miranda Hernández, Pablo Roig Garcés
Submission summary
| Authors (as registered SciPost users): | Jesús Alejandro Miranda Hernández · Pablo Roig |
| Submission information | |
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| Preprint Link: | scipost_202111_00007v1 (pdf) |
| Date accepted: | 2024-12-09 |
| Date submitted: | 2021-11-04 03:30 |
| Submitted by: | Miranda Hernández, Jesús Alejandro |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 16th International Workshop on Tau Lepton Physics (TAU2021) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Phenomenological |
Abstract
We revisit the radiative corrections to the τ−→π−π0ντ(γ) 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 ∼2.2σ.
Current status:
Editorial decision:
For Journal SciPost Physics Proceedings: Publish
(status: Editorial decision fixed and (if required) accepted by authors)
Reports on this Submission
Report #1 by Swagato Banerjee (Referee 1) on 2024-11-22 (Invited Report)
Report
Radiative corrections to the tau- -> pi- pi0 nu_tau (gamma) are revisited using Chiral Resonance theory. This channel gives complementary information on vacuum polarization in the measurement of (g-2)_mu using tau data.
Recommendation
Publish (surpasses expectations and criteria for this Journal; among top 10%)