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Measurements of $\alpha_{s}$ from scaling violations and from R$_{\tau}$ at LEP

The results of two methods to extract the strong coupling constant, \alpha_s, are reviewed for the LEP experiments. In the first, scaling violations in the scaled momentum distributions of charged particles at LEP and at lower energy experiments are employed. In the second, QCD corrections to R_\tau...

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Autor principal: Reeves, P
Lenguaje:eng
Publicado: 1995
Materias:
Acceso en línea:http://cds.cern.ch/record/285106
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author Reeves, P
author_facet Reeves, P
author_sort Reeves, P
collection CERN
description The results of two methods to extract the strong coupling constant, \alpha_s, are reviewed for the LEP experiments. In the first, scaling violations in the scaled momentum distributions of charged particles at LEP and at lower energy experiments are employed. In the second, QCD corrections to R_\tau, the ratio of hadronic to leptonic decay rates of the tau lepton, determine \alpha_s and, using moments of the invariant mass distribution in hadronic tau decays, the non-perturbative corrections to R_\tau.
id cern-285106
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1995
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spelling cern-2851062019-09-30T06:29:59Zhttp://cds.cern.ch/record/285106engReeves, PMeasurements of $\alpha_{s}$ from scaling violations and from R$_{\tau}$ at LEPParticle Physics - ExperimentThe results of two methods to extract the strong coupling constant, \alpha_s, are reviewed for the LEP experiments. In the first, scaling violations in the scaled momentum distributions of charged particles at LEP and at lower energy experiments are employed. In the second, QCD corrections to R_\tau, the ratio of hadronic to leptonic decay rates of the tau lepton, determine \alpha_s and, using moments of the invariant mass distribution in hadronic tau decays, the non-perturbative corrections to R_\tau.hep-ex/9507010GLAS-PPE-95-02oai:cds.cern.ch:2851061995-07-19
spellingShingle Particle Physics - Experiment
Reeves, P
Measurements of $\alpha_{s}$ from scaling violations and from R$_{\tau}$ at LEP
title Measurements of $\alpha_{s}$ from scaling violations and from R$_{\tau}$ at LEP
title_full Measurements of $\alpha_{s}$ from scaling violations and from R$_{\tau}$ at LEP
title_fullStr Measurements of $\alpha_{s}$ from scaling violations and from R$_{\tau}$ at LEP
title_full_unstemmed Measurements of $\alpha_{s}$ from scaling violations and from R$_{\tau}$ at LEP
title_short Measurements of $\alpha_{s}$ from scaling violations and from R$_{\tau}$ at LEP
title_sort measurements of $\alpha_{s}$ from scaling violations and from r$_{\tau}$ at lep
topic Particle Physics - Experiment
url http://cds.cern.ch/record/285106
work_keys_str_mv AT reevesp measurementsofalphasfromscalingviolationsandfromrtauatlep