Alpha_s from Tau Decays

Abstract

We review the present status in the determination of the $accurate$ value of ${\alpha }_s$ from $\tau$-decays, where we discuss in detail the different sources of theoretical errors.

Due to some requests, this paper replaces file corrupted by e-mail transfer: Talk given at the third Workshop on Tau Lepton Physics, Montreux, Switzerland, September 1994. published in Nucl.Phys. B, proceedings supplement, 40 (1995) 47-58

References in corpus (5)

• QCD Matching Conditions at Thresholds
• Instanton contributions to the $\tau$ decay widths
• The alpha_s^3 correction to Gamma (Z^0 -> hadrons)
• Renormalon Singularities of the QCD Vacuum Polarization Function to Leading Order in $1/N_f$
• Tau Polarimetry with Inclusive Decays

Cited by in corpus (5)

• Strange-quark mass from combined e+e- and tau-decay data:test of the isospin symmetry and implications on epsilon'/εand m_{u,d}
• QCD Predictions for the Tau Hadronic Width: Determination of alpha_s(M_τ^2)
• Perturbative QCD Calculations of Total Cross Sections and Decay Widths in Hard Inclusive Processes
• A Measurement of the tau->electron Branching Ratio
• Vector and Axial-Vector Spectral Functions and QCD