Determining the beta-function of the strong interaction and closing the light gluino window

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dc.creatorCsikor, F.
dc.creatorFodor, Z.
dc.date1996-11-13
dc.date1997-05-15
dc.date.accessioned2026-07-07T10:33:25Z
dc.date.available2026-07-07T10:33:25Z
dc.descriptionWe discuss the perturbative running of alpha_s in a model independent way. Our analysis contains data on the hadronic tau decay and hadronic cross sections in e+e- annihilation between 5 GeV and M_Z. We determine the color coefficients and the perturbative beta-function of the strong interaction. The results are in agreement with QCD and rule out the QCD+light gluino scenarios on the 70.8 - 93.0% CL. We combine our method with that of the multi-jet analysis at LEP. The combined result rules out light gluinos at least on the 99.76% CL, provided that nonperturbative effects are not large.
dc.description6 pages, Latex, 3 eps figures included. Recently calculated three-loop calculations and some new experimental results are included in the analysis
dc.identifierhttps://arxiv.org/abs/hep-ph/9611320
dc.identifierhttp://arxiv.org/abs/hep-ph/9611320
dc.identifierPhys.Rev.Lett.78:4335-4338,1997
dc.identifierdoi:10.1103/PhysRevLett.78.4335
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179103
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleDetermining the beta-function of the strong interaction and closing the light gluino window
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