TY  - JOUR
AU  - Cirigliano, V.
AU  - Diaz-Calderon, D.
AU  - Falkowski, A.
AU  - Gonzalez-Alonso, M.
AU  - Rodriguez-Sanchez, A.
PY  - 2022
DA  - 2022//
TI  - Semileptonic tau decays beyond the Standard Model
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 152
EP  - 61pp
VL  - 04
IS  - 4
PB  - Springer
KW  - Semi-Leptonic Decays
KW  - Specific BSM Phenomenology
AB  - 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.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2112.02087
UR  - https://doi.org/10.1007/JHEP04(2022)152
DO  - 10.1007/JHEP04(2022)152
LA  - English
N1  - WOS:000788323700004
ID  - Cirigliano_etal2022
ER  -