Infrared modified analysis for the $τ$ lepton width
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We argue that accounting for higher order corrections in QCD by integrating a running coupling constant through an infrared region can be most easily done with making use of a scheme without the Landau pole. Within this approach the entire ambiguity of the answer is identical to that of the choice of renormalization scheme. The uncertainties for the $τ$ lepton width resulting from such a technique are discussed.
8 pages, LaTeX, one table
8 pages, LaTeX, one table