LEP results on $\alpha_{s}(M_{Z})$ from $R_{had}$ and event shape variables

We present here the LEP results on the measurement of the QCD coupling constant, a,, using two complementary analyses. Firstly, from the fits within the framework of the Standard Model, we determine a,(Mz) = 0.127 ± 0.006. Secondly, from the study of global event shape variables, we obtain a,(Mz) =...

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Detalles Bibliográficos
Autor principal: Casaus, J
Lenguaje:eng
Publicado: 1996
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/321430
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author Casaus, J
author_facet Casaus, J
author_sort Casaus, J
collection CERN
description We present here the LEP results on the measurement of the QCD coupling constant, a,, using two complementary analyses. Firstly, from the fits within the framework of the Standard Model, we determine a,(Mz) = 0.127 ± 0.006. Secondly, from the study of global event shape variables, we obtain a,(Mz) = 0.123 ± 0.006. Both measurements agree within the errors. The latter method of determining a; is dominated by theoretical uncertainties.
id cern-321430
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1996
record_format invenio
spelling cern-3214302019-09-30T06:29:59Zhttp://cds.cern.ch/record/321430engCasaus, JLEP results on $\alpha_{s}(M_{Z})$ from $R_{had}$ and event shape variablesParticle Physics - ExperimentWe present here the LEP results on the measurement of the QCD coupling constant, a,, using two complementary analyses. Firstly, from the fits within the framework of the Standard Model, we determine a,(Mz) = 0.127 ± 0.006. Secondly, from the study of global event shape variables, we obtain a,(Mz) = 0.123 ± 0.006. Both measurements agree within the errors. The latter method of determining a; is dominated by theoretical uncertainties.oai:cds.cern.ch:3214301996
spellingShingle Particle Physics - Experiment
Casaus, J
LEP results on $\alpha_{s}(M_{Z})$ from $R_{had}$ and event shape variables
title LEP results on $\alpha_{s}(M_{Z})$ from $R_{had}$ and event shape variables
title_full LEP results on $\alpha_{s}(M_{Z})$ from $R_{had}$ and event shape variables
title_fullStr LEP results on $\alpha_{s}(M_{Z})$ from $R_{had}$ and event shape variables
title_full_unstemmed LEP results on $\alpha_{s}(M_{Z})$ from $R_{had}$ and event shape variables
title_short LEP results on $\alpha_{s}(M_{Z})$ from $R_{had}$ and event shape variables
title_sort lep results on $\alpha_{s}(m_{z})$ from $r_{had}$ and event shape variables
topic Particle Physics - Experiment
url http://cds.cern.ch/record/321430
work_keys_str_mv AT casausj lepresultsonalphasmzfromrhadandeventshapevariables

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