Decay properties of tau leptons measured at the Z° resonance

From 2540 Z ° ---, r+r - events, we determine the inclusive decay branching fractions of the r-lepton into one and three charged particles to be 0.856 ± 0.006 (stat.) + 0.003 (syst.) and 0.144 + 0.006 (stat.) 4- 0.003 (syst.), respectively. The leptonic branching fractions are measured to be 0.175 +...

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Detalles Bibliográficos
Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 1991
Materias:
Ciencias Exactas
Física
tau leptons
Z ° resonance
center-of-mass energy
LEP
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/73073
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-73073
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
tau leptons
Z ° resonance
center-of-mass energy
LEP
spellingShingle Ciencias Exactas
Física
tau leptons
Z ° resonance
center-of-mass energy
LEP
Dova, María Teresa
L3 Collaboration
Decay properties of tau leptons measured at the Z° resonance
topic_facet Ciencias Exactas
Física
tau leptons
Z ° resonance
center-of-mass energy
LEP
description From 2540 Z ° ---, r+r - events, we determine the inclusive decay branching fractions of the r-lepton into one and three charged particles to be 0.856 ± 0.006 (stat.) + 0.003 (syst.) and 0.144 + 0.006 (stat.) 4- 0.003 (syst.), respectively. The leptonic branching fractions are measured to be 0.175 + 0.008 (stat.) 5:0.005 (syst.) for r ---, ltuuur and 0.177 4- 0.007 (stat.) 4- 0.006 (syst.) for r ~ eueur. We determine the r lifetime both from three-prong decays using the decay length and from one-prong decays using the impact parameter. The results from the two independent methods agree and yield a combined value of [0.309 4- 0.023 (stat.)+ 0.030 (syst.)] × 10-1as.
format Articulo
Articulo
author Dova, María Teresa
L3 Collaboration
author_facet Dova, María Teresa
L3 Collaboration
author_sort Dova, María Teresa
title Decay properties of tau leptons measured at the Z° resonance
title_short Decay properties of tau leptons measured at the Z° resonance
title_full Decay properties of tau leptons measured at the Z° resonance
title_fullStr Decay properties of tau leptons measured at the Z° resonance
title_full_unstemmed Decay properties of tau leptons measured at the Z° resonance
title_sort decay properties of tau leptons measured at the z° resonance
publishDate 1991
url http://sedici.unlp.edu.ar/handle/10915/73073
work_keys_str_mv AT dovamariateresa decaypropertiesoftauleptonsmeasuredatthezresonance
AT l3collaboration decaypropertiesoftauleptonsmeasuredatthezresonance
bdutipo_str Repositorios
_version_ 1764820483482583041

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