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Non-standard interactions in $\tau^- \to (\pi^-\eta,\pi^-\pi^0)\nu_{\tau}$ decays

by G. L\'opez Castro

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Submission summary

Authors (as registered SciPost users): Gabriel Lopez Castro
Submission information
Preprint Link: scipost_201811_00020v1  (pdf)
Date accepted: 2019-01-08
Date submitted: 2018-11-15 01:00
Submitted by: Lopez Castro, Gabriel
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


Originally thought as clean processes to study the hadronization of the weak currents, semileptonic tau lepton decays can be useful to set constraints on non-standard (NS) weak interactions. In this talk we summarize our recent studies on the effects of NS interactions in $\tau^- \to (\pi^-\pi^0,\pi^-\eta)\nu_{\tau}$ decays. We find that experimental data on these decays provide strong constraints on NS scalar and tensor interactions, respectively. Further improved measurements at Belle II and a better knowledge of necessary tensor and scalar form factors will allow to set limits on these NS interactions that are similar or better to contraints obtained from other low-energy processes

Published as SciPost Phys. Proc. 1, 008 (2019)

Submission & Refereeing History

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Submission scipost_201811_00020v1 on 15 November 2018

Reports on this Submission

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

  • Cite as: Anonymous, Report on arXiv:scipost_201811_00020v1, delivered 2018-12-13, doi: 10.21468/SciPost.Report.743


The conference contribution under consideration is entirely based on the two reviewed journal publications JHEP 1712 (2017) 027 as well as JHEP 1811 (2018) 038. It is well written and clear. Hence, in my opinion there is no need for a more detailed report.

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