SciPost Submission Page
New $\tau$-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 | |
|---|---|
| Preprint Link: | scipost_202111_00007v1 (pdf) |
| 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: |
|
| Approach: | Phenomenological |
Abstract
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 $\sim2.2\sigma$.
Current status:
In refereeing