Measurement of the B°-B° mixing parameter and the Z → bb forward-backward asymmetry
- Autores
- Dova, María Teresa; L3 Collaboration
- Año de publicación
- 1994
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We have measured the time integrated B°-B° mixing parameter and the forward-backward asymmetry in the process e+e− → bb using hadronic events containing muons or electrons. The data sample corresponds to 1,044,000 hadronic decays of the Z. From a fit to the momentum and transverse momentum distributions for single lepton and dilepton events, we have determined the B°-B° mixing parameter to be χB = 0.123 =k 0.012 (stat.) -t- 0.008 (sys.), and the bb forward-backward asymmetry at the effective center-of-mass energy x/~ = 91.30GeV to be AbF , = 0.087 + 0.011 (stat.) =t= 0.004 (sys.) This measurement corresponds to a value of the effective electroweak mixing angle of sin20w = 0.2335 + 0.0021.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
hadronic events
muons
electrons - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/73621
Ver los metadatos del registro completo
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Measurement of the B°-B° mixing parameter and the Z → bb forward-backward asymmetryDova, María TeresaL3 CollaborationCiencias ExactasFísicahadronic eventsmuonselectronsWe have measured the time integrated B°-B° mixing parameter and the forward-backward asymmetry in the process e+e− → bb using hadronic events containing muons or electrons. The data sample corresponds to 1,044,000 hadronic decays of the Z. From a fit to the momentum and transverse momentum distributions for single lepton and dilepton events, we have determined the B°-B° mixing parameter to be χB = 0.123 =k 0.012 (stat.) -t- 0.008 (sys.), and the bb forward-backward asymmetry at the effective center-of-mass energy x/~ = 91.30GeV to be AbF , = 0.087 + 0.011 (stat.) =t= 0.004 (sys.) This measurement corresponds to a value of the effective electroweak mixing angle of sin20w = 0.2335 + 0.0021.Facultad de Ciencias Exactas1994-09-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf542-553http://sedici.unlp.edu.ar/handle/10915/73621enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/0370-2693(94)90391-3info: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:UNLP2025-09-29T11:12:09Zoai:sedici.unlp.edu.ar:10915/73621Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:12:09.377SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Measurement of the B°-B° mixing parameter and the Z → bb forward-backward asymmetry |
| title |
Measurement of the B°-B° mixing parameter and the Z → bb forward-backward asymmetry |
| spellingShingle |
Measurement of the B°-B° mixing parameter and the Z → bb forward-backward asymmetry Dova, María Teresa Ciencias Exactas Física hadronic events muons electrons |
| title_short |
Measurement of the B°-B° mixing parameter and the Z → bb forward-backward asymmetry |
| title_full |
Measurement of the B°-B° mixing parameter and the Z → bb forward-backward asymmetry |
| title_fullStr |
Measurement of the B°-B° mixing parameter and the Z → bb forward-backward asymmetry |
| title_full_unstemmed |
Measurement of the B°-B° mixing parameter and the Z → bb forward-backward asymmetry |
| title_sort |
Measurement of the B°-B° mixing parameter and the Z → bb forward-backward asymmetry |
| 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 hadronic events muons electrons |
| topic |
Ciencias Exactas Física hadronic events muons electrons |
| dc.description.none.fl_txt_mv |
We have measured the time integrated B°-B° mixing parameter and the forward-backward asymmetry in the process e+e− → bb using hadronic events containing muons or electrons. The data sample corresponds to 1,044,000 hadronic decays of the Z. From a fit to the momentum and transverse momentum distributions for single lepton and dilepton events, we have determined the B°-B° mixing parameter to be χB = 0.123 =k 0.012 (stat.) -t- 0.008 (sys.), and the bb forward-backward asymmetry at the effective center-of-mass energy x/~ = 91.30GeV to be AbF , = 0.087 + 0.011 (stat.) =t= 0.004 (sys.) This measurement corresponds to a value of the effective electroweak mixing angle of sin20w = 0.2335 + 0.0021. Facultad de Ciencias Exactas |
| description |
We have measured the time integrated B°-B° mixing parameter and the forward-backward asymmetry in the process e+e− → bb using hadronic events containing muons or electrons. The data sample corresponds to 1,044,000 hadronic decays of the Z. From a fit to the momentum and transverse momentum distributions for single lepton and dilepton events, we have determined the B°-B° mixing parameter to be χB = 0.123 =k 0.012 (stat.) -t- 0.008 (sys.), and the bb forward-backward asymmetry at the effective center-of-mass energy x/~ = 91.30GeV to be AbF , = 0.087 + 0.011 (stat.) =t= 0.004 (sys.) This measurement corresponds to a value of the effective electroweak mixing angle of sin20w = 0.2335 + 0.0021. |
| publishDate |
1994 |
| dc.date.none.fl_str_mv |
1994-09-08 |
| 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 |
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http://sedici.unlp.edu.ar/handle/10915/73621 |
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http://sedici.unlp.edu.ar/handle/10915/73621 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/doi/10.1016/0370-2693(94)90391-3 |
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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) |
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openAccess |
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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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