%0 Journal Article
%T Semileptonic tau decays beyond the Standard Model
%A Cirigliano, V.
%A Diaz-Calderon, D.
%A Falkowski, A.
%A Gonzalez-Alonso, M.
%A Rodriguez-Sanchez, A.
%J Journal of High Energy Physics
%D 2022
%V 04
%N 4
%I Springer
%@ 1029-8479
%G English
%F Cirigliano_etal2022
%O WOS:000788323700004
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5216), last updated on Fri, 13 May 2022 07:48:59 +0000
%X Hadronic tau decays are studied as probe of new physics. We determine the dependence of several inclusive and exclusive tau observables on the Wilson coefficients of the low-energy effective theory describing charged-current interactions between light quarks and leptons. The analysis includes both strange and non-strange decay channels. The main result is the likelihood function for the Wilson coefficients in the tau sector, based on the up-to-date experimental measurements and state-of-the-art theoretical techniques. The likelihood can be readily combined with inputs from other low-energy precision observables. We discuss a combination with nuclear beta, baryon, pion, and kaon decay data. In particular, we provide a comprehensive and model-independent description of the new physics hints in the combined dataset, which are known under the name of the Cabibbo anomaly.
%K Semi-Leptonic Decays
%K Specific BSM Phenomenology
%R 10.1007/JHEP04(2022)152
%U https://arxiv.org/abs/2112.02087
%U https://doi.org/10.1007/JHEP04(2022)152
%P 152-61pp