Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP

A measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons, b→X<sub>u</sub>ℓν, has been performed using almost two million hadronic Z decays collected by the L3 experiment at LEP, yielding the result: Br(b→X<sub>u</sub>ℓν)=(3.3±1.0±1.7)×10<s...

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Detalles Bibliográficos
Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 1998
Materias:
Ciencias Exactas
Física
hadrons
large electron positron collider
Cabibbo-Kobayashi-Maskawa matrix
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80513
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80513
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
hadrons
large electron positron collider
Cabibbo-Kobayashi-Maskawa matrix
spellingShingle Ciencias Exactas
Física
hadrons
large electron positron collider
Cabibbo-Kobayashi-Maskawa matrix
Dova, María Teresa
L3 Collaboration
Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP
topic_facet Ciencias Exactas
Física
hadrons
large electron positron collider
Cabibbo-Kobayashi-Maskawa matrix
description A measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons, b→X<sub>u</sub>ℓν, has been performed using almost two million hadronic Z decays collected by the L3 experiment at LEP, yielding the result: Br(b→X<sub>u</sub>ℓν)=(3.3±1.0±1.7)×10<sup>−3</sup>. The first uncertainty is statistical and the second is systematic. The modulus of the Cabibbo-Kobayashi-Maskawa matrix element V<sub>ub</sub> extracted from this measurement is: <math><mtext>|</mtext><mtext>V</mtext><msub><mi></mi><mn>ub</mn></msub><mtext>|=(6.0</mtext><mspace sp="0.2" width="2px" linebreak="nobreak" is="true"></mspace><msup><mi></mi><mn>+0.8</mn></msup><msub><mi></mi><mn>−1.0</mn></msub><mspace sp="0.2" width="2px" linebreak="nobreak" is="true"></mspace><msup><mi></mi><mn>+1.4</mn></msup><msub><mi></mi><mn>−1.9</mn></msub><mtext>±0.2)×10</mtext><msup><mi></mi><mn>−3</mn></msup><mtext>,</mtext></math> where the uncertainties are statistical, systematic and theoretical, respectively.
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 inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP
title_short Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP
title_full Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP
title_fullStr Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP
title_full_unstemmed Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP
title_sort measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |v<sub>ub</sub>| at lep
publishDate 1998
url http://sedici.unlp.edu.ar/handle/10915/80513
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AT l3collaboration measurementoftheinclusivecharmlesssemileptonicbranchingfractionofbeautyhadronsandadeterminationofvsububsubatlep
bdutipo_str Repositorios
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