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

Autores
Dova, María Teresa; L3 Collaboration
Año de publicación
1998
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons, b→Xuℓν, has been performed using almost two million hadronic Z decays collected by the L3 experiment at LEP, yielding the result: Br(b→Xuℓν)=(3.3±1.0±1.7)×10−3. The first uncertainty is statistical and the second is systematic. The modulus of the Cabibbo-Kobayashi-Maskawa matrix element Vub extracted from this measurement is: |Vub|=(6.0+0.8−1.0+1.4−1.9±0.2)×10−3, where the uncertainties are statistical, systematic and theoretical, respectively.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
hadrons
large electron positron collider
Cabibbo-Kobayashi-Maskawa matrix
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/80513

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network_name_str SEDICI (UNLP)
spelling Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEPDova, María TeresaL3 CollaborationCiencias ExactasFísicahadronslarge electron positron colliderCabibbo-Kobayashi-Maskawa matrixA 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.Facultad de Ciencias Exactas1998-09-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf174-186http://sedici.unlp.edu.ar/handle/10915/80513enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(98)00941-1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:14:51Zoai:sedici.unlp.edu.ar:10915/80513Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:14:51.811SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP
title Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP
spellingShingle Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP
Dova, María Teresa
Ciencias Exactas
Física
hadrons
large electron positron collider
Cabibbo-Kobayashi-Maskawa matrix
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
dc.creator.none.fl_str_mv Dova, María Teresa
L3 Collaboration
author Dova, María Teresa
author_facet Dova, María Teresa
L3 Collaboration
author_role author
author2 L3 Collaboration
author2_role author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
hadrons
large electron positron collider
Cabibbo-Kobayashi-Maskawa matrix
topic Ciencias Exactas
Física
hadrons
large electron positron collider
Cabibbo-Kobayashi-Maskawa matrix
dc.description.none.fl_txt_mv 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.
Facultad de Ciencias Exactas
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.
publishDate 1998
dc.date.none.fl_str_mv 1998-09-17
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/80513
url http://sedici.unlp.edu.ar/handle/10915/80513
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0370-2693
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(98)00941-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
174-186
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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