QCD Description of Hadronic Tau Decays
High Energy Physics - Phenomenology
2011-09-20 v1
Abstract
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.
Keywords
Cite
@article{arxiv.1101.2107,
title = {QCD Description of Hadronic Tau Decays},
author = {Antonio Pich},
journal= {arXiv preprint arXiv:1101.2107},
year = {2011}
}
Comments
9 pages, 1 figure. Invited talk at the 11th International Workshop on Tau Lepton Physics (Manchester, September 2010)