Leptonic decays of the tau lepton

Matteo Fael

doi:10.1051/epjconf/201921208004

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 212, 08004 (2019)
https://doi.org/10.1051/epjconf/201921208004

Leptonic decays of the tau lepton

Matteo Fael^*

Theoretische Physik I, Universität Siegen, Walter-Flex-Strasse 3, 57068 Siegen, Germany

^* e-mail: fael@physik.uni-siegen.de

Published online: 17 June 2019

Abstract

In these proceedings we review the SM prediction for the tau leptonic decays, including the radiative $(τ \to ℓ λ ν \bar{ν})$ $(\tau \to \ell \lambda \nu \bar \nu )$ and the five-body $(τ \to ℓ ℓ^{'} ℓ^{'} ν \bar{ν})$ $(\tau \to \ell \ell '\ell '\nu \bar \nu )$ decay modes, which are among the most powerful tools to study precisely the structure of the weak interaction and to constrain possible contributions beyond the V–A coupling of the Standard Model.

© The Authors, published by EDP Sciences, 2019

This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.