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→X_uℓν, has been performed using almost two million hadronic Z decays collected by the L3 experiment at LEP, yielding the result: Br(b→X_uℓν)=(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 V_ub extracted from this measurement is: $| V_{ub} |=(6.0^{+0.8}_{−1.0}^{+1.4}_{−1.9} ±0.2)×10^{−3},$ 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
Institución: Universidad Nacional de La Plata
OAI Identificador: oai:sedici.unlp.edu.ar:10915/80513

Acceder

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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:UNLP2025-10-22T16:55:40Zoai: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:13292025-10-22 16:55:40.665SEDICI (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
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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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Measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons and a determination of |V<sub>ub</sub>| at LEP

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