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Test of QCD at LEP
In this report, the latest measurements involving high precision tests of QCD at LEP are reviewed. The status of the strong coupling constant, alpha /sub s/, is discussed and summarized. The combination of the results obtained by the different collaborations at various center-of-mass energies is use...
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Lenguaje: | eng |
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1998
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Acceso en línea: | http://cds.cern.ch/record/434005 |
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author | Verdu, J F |
author_facet | Verdu, J F |
author_sort | Verdu, J F |
collection | CERN |
description | In this report, the latest measurements involving high precision tests of QCD at LEP are reviewed. The status of the strong coupling constant, alpha /sub s/, is discussed and summarized. The combination of the results obtained by the different collaborations at various center-of-mass energies is used to compute an updated LEP average of alpha /sub s/(M/sub Z/)=0.120+or-0.005 (stat.+ syst) The charged multiplicity of quark and gluon jets has been investigated for various three-jet event topologies and compared for different energy and transverse momentum-like scales. An increase of the gluon jet multiplicity with the scale was observed and this was twice as strong as the corresponding increase for quarks. (32 refs). |
id | cern-434005 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 1998 |
record_format | invenio |
spelling | cern-4340052019-09-30T06:29:59Zhttp://cds.cern.ch/record/434005engVerdu, J FTest of QCD at LEPParticle Physics - ExperimentIn this report, the latest measurements involving high precision tests of QCD at LEP are reviewed. The status of the strong coupling constant, alpha /sub s/, is discussed and summarized. The combination of the results obtained by the different collaborations at various center-of-mass energies is used to compute an updated LEP average of alpha /sub s/(M/sub Z/)=0.120+or-0.005 (stat.+ syst) The charged multiplicity of quark and gluon jets has been investigated for various three-jet event topologies and compared for different energy and transverse momentum-like scales. An increase of the gluon jet multiplicity with the scale was observed and this was twice as strong as the corresponding increase for quarks. (32 refs).oai:cds.cern.ch:4340051998 |
spellingShingle | Particle Physics - Experiment Verdu, J F Test of QCD at LEP |
title | Test of QCD at LEP |
title_full | Test of QCD at LEP |
title_fullStr | Test of QCD at LEP |
title_full_unstemmed | Test of QCD at LEP |
title_short | Test of QCD at LEP |
title_sort | test of qcd at lep |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/434005 |
work_keys_str_mv | AT verdujf testofqcdatlep |