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Updated determinations of |V$_{us}$| with tau decays using new recent estimates of radiative corrections for light-meson leptonic decay rates

by Alberto Lusiani

Submission summary

Authors (as registered SciPost users): Alberto Lusiani
Submission information
Preprint Link: https://arxiv.org/abs/2201.03272v3  (pdf)
Date submitted: 2024-12-18 03:49
Submitted by: Lusiani, Alberto
Submitted to: SciPost Physics Proceedings
Proceedings issue: 16th International Workshop on Tau Lepton Physics (TAU2021)
Ontological classification
Academic field: Physics
Specialties:
  • High-Energy Physics - Phenomenology
Approaches: Theoretical, Experimental, Phenomenological

Abstract

We update the |V$_{us}$| determinations using the HFLAV 2018 report tau branching fraction results with recent new estimates of the $\pi\ell2$ and $K\ell2$ radiative corrections. There are minor changes of the central values and uncertainties.

Author comments upon resubmission

Addressed reviewer comments.

List of changes

1. modified 2nd eq. in p.2 to indicate use of reduced Fermi constant and facilitate recognition of the units of each term

2. mentioned existence of additional recently published new radiative corrections, as requested

3. Table 1 & Figure 1 now report only Vus with tau measurements described in this document

4. Figure 1 now reports Vus with tau measurements for both discussed radiative corrections

5. captions of Table 1 and Figure 1 modified to account for content changes

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