Analytic Perturbation Theory and Inclusive Tau Decay

Abstract

We apply analytic perturbation theory to the inclusive decay of a $\tau$ lepton into hadrons. It is shown that the resulting analyticity of the coupling constant strongly influences the value of the QCD $\Lambda$-parameter extracted from the experimental data on $\tau$ decay.

10 pages, 2 figures, REVTeX, psfig, penultimate paragraph added

References in corpus (1)

• Analytic Model for the QCD Running Coupling with Universal ${\bar{\alpha }}_s(0)$ Value

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