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arxiv: 1101.2107 · v1 · pith:N7PHKKOYnew · submitted 2011-01-11 · ✦ hep-ph

QCD Description of Hadronic Tau Decays

Antonio Pich This is my paper
classification ✦ hep-ph
keywords decayshadronicalphaanalysiscabibbo-suppressedchiral-perturbation-theorycouplingsdata
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The QCD analysis of hadronic tau decays is reviewed and a summary of the present phenomenological status is presented. The following topics are discussed: the determination of alpha_s(m_tau) = 0.338 +- 0.012 from the inclusive tau hadronic width, the measurement of |V_us| through the Cabibbo-suppressed decays of the tau, and the extraction of chiral-perturbation-theory couplings from the spectral tau data.

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  1. Hadronic tau decays at higher orders in QCD

    hep-ph 2026-01 unverdicted novelty 5.0

    Sequence transformations applied to the fixed-order QCD series for hadronic tau decays produce estimates c5,1 = 298 ± 15, c6,1 = 3431 ± 256, c7,1 = 2.29 ± 0.29 × 10^4 and a predicted δ^(0)_FOPT = 0.2119 ± 0.0040.