Tau polarisation measurement at LEP

The measurement of the tau polarisation at LEP has been performed by the four experiments. New preliminary measurements from ALEPH and DELPHI allow to reach a very good precision. The results on A/sub tau / and A/sub e/ show good consistency among the four LEP experiments. The ratio of the tau to el...

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Detalles Bibliográficos
Autor principal: Brient, J C
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/504969
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author Brient, J C
author_facet Brient, J C
author_sort Brient, J C
collection CERN
description The measurement of the tau polarisation at LEP has been performed by the four experiments. New preliminary measurements from ALEPH and DELPHI allow to reach a very good precision. The results on A/sub tau / and A/sub e/ show good consistency among the four LEP experiments. The ratio of the tau to electron vector couplings verifies the lepton universality in the neutral current. In the framework of the standard model, the effective electroweak mixing angle is measured to be sin /sup 2/ theta /sub W/=0.23176+or-0.00043. (5 refs).
id cern-504969
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
record_format invenio
spelling cern-5049692019-09-30T06:29:59Zhttp://cds.cern.ch/record/504969engBrient, J CTau polarisation measurement at LEPParticle Physics - ExperimentThe measurement of the tau polarisation at LEP has been performed by the four experiments. New preliminary measurements from ALEPH and DELPHI allow to reach a very good precision. The results on A/sub tau / and A/sub e/ show good consistency among the four LEP experiments. The ratio of the tau to electron vector couplings verifies the lepton universality in the neutral current. In the framework of the standard model, the effective electroweak mixing angle is measured to be sin /sup 2/ theta /sub W/=0.23176+or-0.00043. (5 refs).oai:cds.cern.ch:5049691999
spellingShingle Particle Physics - Experiment
Brient, J C
Tau polarisation measurement at LEP
title Tau polarisation measurement at LEP
title_full Tau polarisation measurement at LEP
title_fullStr Tau polarisation measurement at LEP
title_full_unstemmed Tau polarisation measurement at LEP
title_short Tau polarisation measurement at LEP
title_sort tau polarisation measurement at lep
topic Particle Physics - Experiment
url http://cds.cern.ch/record/504969
work_keys_str_mv AT brientjc taupolarisationmeasurementatlep

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