Lepton Flavour Universality tests and determination of $|V_{us}|$ using the HFLAV-Tau branching fractions fit
We present an update of the lepton flavour universality (LFU) tests and of the determination of the CKM matrix element \Vus using the latest HFLAV-Tau global fit of $\tau$ branching fractions. The fit accounts for correlations and dependencies on common external inputs. We investigate the impact of using next-to-leading-order QED corrections in the LFU tests.
Authors
- Alberto Lusiani
- HFLAV-Tau group
Publication Details
- Published
- 2026-01-30
- DOI
- https://doi.org/10.22323/1.485.0325
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00