Infrared modified analysis for the $τ$ lepton width

Details Infrared modified analysis for the $τ$ lepton width Infrared modified analysis for the $τ$ lepton width

1996-07-05

arxiv.org/abs/hep-ph/9607247v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX, one table

Scientific paper

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 $\tau$ lepton width resulting from such a technique are discussed.

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