Radiative corrections to the τ^-→ (P_1P_2)^-ν_τ (P_1,2=π, K) decays
arXiv (Cornell University)（2023）
Abstract
The radiative corrections to the τ^-→ (P_1P_2)^-ν_τ
(P_1,2=π, K) decays are calculated for the first time including the
structure-dependent real photon corrections, which are obtained using Resonance
Chiral Theory. Our results, whose uncertainty is dominated by the
model-dependence of the resummation of the radiative corrections and the
missing virtual structure-dependent contributions, allow for precise tests of
CKM unitarity, lepton flavour universality and non-standard interactions.
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Key words
\tau^-\to,^-\nu_\tau
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