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Current Status of inclusive hadronic tau determinations of |V_us|

by K. Maltman, P.A. Boyle, R.J. Hudspith, T. Izubuchi, A. Juttner, C. Lehner, R. Lewis, H. Ohki, A. Portelli, M. Spraggs, J.M. Zanotti

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Submission summary

Authors (as registered SciPost users): Kim Maltman
Submission information
Preprint Link: scipost_201811_00019v1  (pdf)
Date accepted: 2019-01-09
Date submitted: 2018-11-14 01:00
Submitted by: Maltman, Kim
Submitted to: SciPost Physics Proceedings
Proceedings issue: The 15th International Workshop on Tau Lepton Physics (TAU2018)
Ontological classification
Academic field: Physics
  • High-Energy Physics - Theory
  • High-Energy Physics - Phenomenology
Approach: Theoretical


We review the status of the determination of |V_{us}| from both flavor-breaking finite-energy sum rules based on inclusive non-strange and strange hadronic tau decay data and the recent lattice-based analysis of inclusive strange hadronic tau decay data. In particular, we update the results from these analysis frameworks taking into account recent improvements to a number of strange branching fractions reported by HFLAV at CKM2018 and this meeting. We find that inclusive tau decay data yields results for |V_{us}| compatible within errors with the expectations of three-family unitarity.

Published as SciPost Phys. Proc. 1, 006 (2019)

Submission & Refereeing History

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Submission scipost_201811_00019v1 on 14 November 2018

Reports on this Submission

Anonymous Report 1 on 2018-12-13 (Invited Report)

  • Cite as: Anonymous, Report on arXiv:scipost_201811_00019v1, delivered 2018-12-13, doi: 10.21468/SciPost.Report.742


The conference contribution under consideration presents slightly updated results already contained in two reviewed journal publications: Phys. Lett. B781 (2018) 206 as well as Phys. Rev. Lett. 121 (2018) 202003. It is reasonably well written and clear. Hence, in my opinion there is no need for a more detailed report.

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