Measurement of the average lifetime of b hadrons

The average lifetime of b hadrons has been measured using the L3 detector at LEP, running at √s ≈ M<sub>Z</sub>. A b-enriched sample was obtained from 432538 hadronic Z events collected in 1990 and 1991 by tagging electrons and muons from semileptonic b hadron decays. From maximum likeli...

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Detalles Bibliográficos
Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 1993
Materias:
Ciencias Exactas
Física
L3 detector
large electron positron collider
Partículas Elementales
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81598
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81598
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
L3 detector
large electron positron collider
Partículas Elementales
spellingShingle Ciencias Exactas
Física
L3 detector
large electron positron collider
Partículas Elementales
Dova, María Teresa
L3 Collaboration
Measurement of the average lifetime of b hadrons
topic_facet Ciencias Exactas
Física
L3 detector
large electron positron collider
Partículas Elementales
description The average lifetime of b hadrons has been measured using the L3 detector at LEP, running at √s ≈ M<sub>Z</sub>. A b-enriched sample was obtained from 432538 hadronic Z events collected in 1990 and 1991 by tagging electrons and muons from semileptonic b hadron decays. From maximum likelihood fits to the electron and muon impact parameter distributions, the average b hadron lifetime was measured to be τ<sub>b</sub> = (1535 ± 35 ± 28) fs, where the first error is statistical and the second includes both the experimental and the theoretical systematic uncertainties.
format Articulo
Articulo
author Dova, María Teresa
L3 Collaboration
author_facet Dova, María Teresa
L3 Collaboration
author_sort Dova, María Teresa
title Measurement of the average lifetime of b hadrons
title_short Measurement of the average lifetime of b hadrons
title_full Measurement of the average lifetime of b hadrons
title_fullStr Measurement of the average lifetime of b hadrons
title_full_unstemmed Measurement of the average lifetime of b hadrons
title_sort measurement of the average lifetime of b hadrons
publishDate 1993
url http://sedici.unlp.edu.ar/handle/10915/81598
work_keys_str_mv AT dovamariateresa measurementoftheaveragelifetimeofbhadrons
AT l3collaboration measurementoftheaveragelifetimeofbhadrons
bdutipo_str Repositorios
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