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Open Access item QCD formulation of the tau decay and determination of LAMBDAMS.bar

Authors:Narison, Stéphan
Pich, Antonio
Issue Date:25-Aug-1988
Publisher:Elsevier
Citation:Physics Letters B 211(1-2): 183-188 (1988)
Abstract:We present a simple formulation of the inclusive and exclusive semi-hadronic decays of the tau lepton using QCD-duality finite energy sum rules (FESRs). We find that the tau decay is a good laboratory for measuring the QCD scale Λ. Within the present experimental accuracy, we obtain A_MS= (100-200)MeV to four loops. This prediction can be sensibly improved once the experimental situation has been clarified.
Description:6 páginas, 1 tabla.-- CERN-TH-5061-88 ; PM-88-27.
Publisher version (URL):http://dx.doi.org/10.1016/0370-2693(88)90830-1
URI:http://hdl.handle.net/10261/33407
ISSN:0370-2693
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Appears in Collections:(IFIC) Artículos

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