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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/33357
Title: QCD analysis of the tau hadronic width
Authors: Braaten, E.; Narison, Stéphan; Pich, Antonio
Issue Date: 13-Apr-1992
Publisher: Elsevier
Citation: Nuclear Physics B 373(3): 581-612 (1992)
Abstract: The total τ hadronic width can be accurately calculated using analyticity and the operator product expansion. The theoretical analysis of this observable is updated to include all available perturbative and non-perturbative corrections. Experimental measurements of τ decay rates are used to determine with high precision the QCD running coupling constant at the scale of the τ mass. The analysis is also used to study the present discrepancy between the experimental measurements of the leptonic branching fractions of the τ and its total lifetime.
Description: 32 páginas, 1 figura, 4 tablas.-- CERN-TH-6070-91 ; NUHEP-TH-91-8 ; PM-91-8.
Publisher version (URL): http://dx.doi.org/10.1016/0550-3213(92)90267-F
URI: http://hdl.handle.net/10261/33357
DOI: 10.1016/0550-3213(92)90267-F
ISSN: 0550-3213
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