An analysis of electroweak radiative corrections to {τ} decays is presented. Precise predictions for leptonic and some hadronic decay rates are given. The total hadronic decay width is shown to be relatively enhanced by 2.36% due mainly to short-distance loop effects. Implications for the extraction of Λ_MS from the {τ} lifetime or leptonic branching ratios are discussed. (MS{} denotes the modified minimal-subtraction scheme.)
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Marciano et al. (1988) studied this question.
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