Hadronic τdecays and QCD

Details Hadronic τdecays and QCD Hadronic τdecays and QCD

1999-12-20

arxiv.org/abs/hep-ex/9912044v1

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages

Scientific paper

Hadronic decays of the $\tau$ lepton provide a clean source to study hadron dynamics in an energy regime dominated by resonances, with the interesting information captured in the spectral functions. Recent results on exclusive channels are reviewed. Inclusive spectral functions are the basis for QCD analyses, delivering an accurate determination of the strong coupling constant and quantitative information on nonperturbative contributions. Strange decays yield a determination of the strange quark mass.

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