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QCD Description of Hadronic Tau Decays

AuthorsPich, Antonio
Issue Date11-Jan-2011
AbstractThe 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.
Description9 páginas, 1 figura, 1 tabla.-- Invited talk at the 11th International Workshop on Tau Lepton Physics (Manchester, September 2010).
Publisher version (URL)http://arxiv.org/abs/1101.2107v1
Appears in Collections:(IFIC) Artículos
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