Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons

Autores
Dova, María Teresa; L3 Collaboration
Año de publicación
1999
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The time-integrated B0B̄0 mixing parameter and the forward-backward charge asymmetry in the process e+e→bb̄ are measured in hadronic Z events containing prompt muons or electrons, collected by the L3 experiment in the years 1990 to 1995. The total sample of 3.3 milion hadronic Z events with a mean centre-of-mass energy of 91.26 GeV yields: AbFB=0.0960±0.0066(stat.)±0.0033(sys.), χb=0.1192±0.0068(stat.)±0.0051(sys.). This asymmetry measurement together with measurements at energies away from the Z pole energy yield a pole asymmetry and corresponding effective electroweak mixing angle of: A0,bFB=0.1015±0.0064(stat.)±0.0035(sys.), sin2θ̄W=0.2318±0.0013.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
Medición
asimetríaa
large electron positron collider
L3 detector
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:10915/79977

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network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptonsDova, María TeresaL3 CollaborationCiencias ExactasFísicaMediciónasimetríaalarge electron positron colliderL3 detectorThe time-integrated <math><mtext>B</mtext><msup><mi></mi><mn>0</mn></msup><mtext>B</mtext><mtext>̄</mtext><msup><mi></mi><mn>0</mn></msup></math> mixing parameter and the forward-backward charge asymmetry in the process <math><mtext>e</mtext><msup><mi></mi><mn>+</mn></msup><mtext>e</mtext><msup><mi></mi><mn>−</mn></msup><mtext>→b</mtext><mtext>b</mtext><mtext>̄</mtext></math> are measured in hadronic Z events containing prompt muons or electrons, collected by the L3 experiment in the years 1990 to 1995. The total sample of 3.3 milion hadronic Z events with a mean centre-of-mass energy of 91.26 GeV yields: A<sup>b</sup><sub>FB</sub>=0.0960±0.0066(stat.)±0.0033(sys.), χ<sub>b</sub>=0.1192±0.0068(stat.)±0.0051(sys.). This asymmetry measurement together with measurements at energies away from the Z pole energy yield a pole asymmetry and corresponding effective electroweak mixing angle of: A<sup>0,b</sup><sub>FB</sub>=0.1015±0.0064(stat.)±0.0035(sys.), <math><mtext>sin</mtext><msup><mi></mi><mn>2</mn></msup><mtext>θ</mtext><mtext>̄</mtext><msub><mi></mi><mn><mtext>W</mtext></mn></msub><mtext>=0.2318±0.0013</mtext></math>.Facultad de Ciencias Exactas1999-02-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf152-162http://sedici.unlp.edu.ar/handle/10915/79977enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(98)01601-3info: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:UNLP2025-09-29T11:12:26Zoai:sedici.unlp.edu.ar:10915/79977Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:12:26.962SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
title Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
spellingShingle Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
Dova, María Teresa
Ciencias Exactas
Física
Medición
asimetríaa
large electron positron collider
L3 detector
title_short Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
title_full Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
title_fullStr Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
title_full_unstemmed Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
title_sort Measurement of the e<sup>+</sup>e<sup>-</sup> → Z → bb forward-backward asymmetry and the B<sup>0</sup>B<sup>0</sup> mixing parameter using prompt leptons
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
Medición
asimetríaa
large electron positron collider
L3 detector
topic Ciencias Exactas
Física
Medición
asimetríaa
large electron positron collider
L3 detector
dc.description.none.fl_txt_mv The time-integrated <math><mtext>B</mtext><msup><mi></mi><mn>0</mn></msup><mtext>B</mtext><mtext>̄</mtext><msup><mi></mi><mn>0</mn></msup></math> mixing parameter and the forward-backward charge asymmetry in the process <math><mtext>e</mtext><msup><mi></mi><mn>+</mn></msup><mtext>e</mtext><msup><mi></mi><mn>−</mn></msup><mtext>→b</mtext><mtext>b</mtext><mtext>̄</mtext></math> are measured in hadronic Z events containing prompt muons or electrons, collected by the L3 experiment in the years 1990 to 1995. The total sample of 3.3 milion hadronic Z events with a mean centre-of-mass energy of 91.26 GeV yields: A<sup>b</sup><sub>FB</sub>=0.0960±0.0066(stat.)±0.0033(sys.), χ<sub>b</sub>=0.1192±0.0068(stat.)±0.0051(sys.). This asymmetry measurement together with measurements at energies away from the Z pole energy yield a pole asymmetry and corresponding effective electroweak mixing angle of: A<sup>0,b</sup><sub>FB</sub>=0.1015±0.0064(stat.)±0.0035(sys.), <math><mtext>sin</mtext><msup><mi></mi><mn>2</mn></msup><mtext>θ</mtext><mtext>̄</mtext><msub><mi></mi><mn><mtext>W</mtext></mn></msub><mtext>=0.2318±0.0013</mtext></math>.
Facultad de Ciencias Exactas
description The time-integrated <math><mtext>B</mtext><msup><mi></mi><mn>0</mn></msup><mtext>B</mtext><mtext>̄</mtext><msup><mi></mi><mn>0</mn></msup></math> mixing parameter and the forward-backward charge asymmetry in the process <math><mtext>e</mtext><msup><mi></mi><mn>+</mn></msup><mtext>e</mtext><msup><mi></mi><mn>−</mn></msup><mtext>→b</mtext><mtext>b</mtext><mtext>̄</mtext></math> are measured in hadronic Z events containing prompt muons or electrons, collected by the L3 experiment in the years 1990 to 1995. The total sample of 3.3 milion hadronic Z events with a mean centre-of-mass energy of 91.26 GeV yields: A<sup>b</sup><sub>FB</sub>=0.0960±0.0066(stat.)±0.0033(sys.), χ<sub>b</sub>=0.1192±0.0068(stat.)±0.0051(sys.). This asymmetry measurement together with measurements at energies away from the Z pole energy yield a pole asymmetry and corresponding effective electroweak mixing angle of: A<sup>0,b</sup><sub>FB</sub>=0.1015±0.0064(stat.)±0.0035(sys.), <math><mtext>sin</mtext><msup><mi></mi><mn>2</mn></msup><mtext>θ</mtext><mtext>̄</mtext><msub><mi></mi><mn><mtext>W</mtext></mn></msub><mtext>=0.2318±0.0013</mtext></math>.
publishDate 1999
dc.date.none.fl_str_mv 1999-02-18
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/10915/79977
url http://sedici.unlp.edu.ar/handle/10915/79977
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)01601-3
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)
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152-162
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instname:Universidad Nacional de La Plata
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instname_str Universidad Nacional de La Plata
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