Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X)
- Autores
- Dova, María Teresa; L3 Collaboration
- Año de publicación
- 1991
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We have measured the decay properties of from a study of inclusive muon and electron events. The average (e and μ) b-quark semileptonic branching ratio has been determined to be BR (b → ℓ + X) = 0.119 ± 0.003 (stat.) ± 0.006 (syst.), assuming the standard model prediction of Γbb = 378 ± 3 MeV. From the ratio of the number of dilepton events to single lepton events, we find BR (b → ℓ + X) = 0.113 ± 0.010 (stat.) ± 0.006 (syst.), without assumptions on Λbb. The partial decay width of the Z0 into has been measured to be Λbb = 385 ± 7 (stat.) ± 11 (syst.) MeV with an additional 19 MeV error from the uncertainty in BR (b → ℓ + X). The average fractional energy of bottom hadrons in events has been determined to be 〈xE〉 = 0.686 ± 0.006 (stat.) ± 0.016 (syst.).
La lista completa de autores que integran el documento puede consultarse en el archivo.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
decaimiento
mediciones - 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:10915/72420
Ver los metadatos del registro completo
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Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X)Dova, María TeresaL3 CollaborationCiencias ExactasdecaimientomedicionesWe have measured the decay properties of from a study of inclusive muon and electron events. The average (e and μ) b-quark semileptonic branching ratio has been determined to be BR (b → ℓ + X) = 0.119 ± 0.003 (stat.) ± 0.006 (syst.), assuming the standard model prediction of Γbb = 378 ± 3 MeV. From the ratio of the number of dilepton events to single lepton events, we find BR (b → ℓ + X) = 0.113 ± 0.010 (stat.) ± 0.006 (syst.), without assumptions on Λbb. The partial decay width of the Z0 into has been measured to be Λbb = 385 ± 7 (stat.) ± 11 (syst.) MeV with an additional 19 MeV error from the uncertainty in BR (b → ℓ + X). The average fractional energy of bottom hadrons in events has been determined to be 〈xE〉 = 0.686 ± 0.006 (stat.) ± 0.016 (syst.).La lista completa de autores que integran el documento puede consultarse en el archivo.Facultad de Ciencias Exactas1991-05-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf177-187http://sedici.unlp.edu.ar/handle/10915/72420enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/0370-2693(91)91347-Xinfo: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:UNLP2026-06-23T10:34:28Zoai:sedici.unlp.edu.ar:10915/72420Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292026-06-23 10:34:28.291SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X) |
| title |
Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X) |
| spellingShingle |
Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X) Dova, María Teresa Ciencias Exactas decaimiento mediciones |
| title_short |
Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X) |
| title_full |
Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X) |
| title_fullStr |
Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X) |
| title_full_unstemmed |
Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X) |
| title_sort |
Measurements of Z° bƀ decays and the semileptonic branching ratio BR (b→, ℓ + X) |
| 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 decaimiento mediciones |
| topic |
Ciencias Exactas decaimiento mediciones |
| dc.description.none.fl_txt_mv |
We have measured the decay properties of from a study of inclusive muon and electron events. The average (e and μ) b-quark semileptonic branching ratio has been determined to be BR (b → ℓ + X) = 0.119 ± 0.003 (stat.) ± 0.006 (syst.), assuming the standard model prediction of Γbb = 378 ± 3 MeV. From the ratio of the number of dilepton events to single lepton events, we find BR (b → ℓ + X) = 0.113 ± 0.010 (stat.) ± 0.006 (syst.), without assumptions on Λbb. The partial decay width of the Z0 into has been measured to be Λbb = 385 ± 7 (stat.) ± 11 (syst.) MeV with an additional 19 MeV error from the uncertainty in BR (b → ℓ + X). The average fractional energy of bottom hadrons in events has been determined to be 〈xE〉 = 0.686 ± 0.006 (stat.) ± 0.016 (syst.). La lista completa de autores que integran el documento puede consultarse en el archivo. Facultad de Ciencias Exactas |
| description |
We have measured the decay properties of from a study of inclusive muon and electron events. The average (e and μ) b-quark semileptonic branching ratio has been determined to be BR (b → ℓ + X) = 0.119 ± 0.003 (stat.) ± 0.006 (syst.), assuming the standard model prediction of Γbb = 378 ± 3 MeV. From the ratio of the number of dilepton events to single lepton events, we find BR (b → ℓ + X) = 0.113 ± 0.010 (stat.) ± 0.006 (syst.), without assumptions on Λbb. The partial decay width of the Z0 into has been measured to be Λbb = 385 ± 7 (stat.) ± 11 (syst.) MeV with an additional 19 MeV error from the uncertainty in BR (b → ℓ + X). The average fractional energy of bottom hadrons in events has been determined to be 〈xE〉 = 0.686 ± 0.006 (stat.) ± 0.016 (syst.). |
| publishDate |
1991 |
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1991-05-23 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/72420 |
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http://sedici.unlp.edu.ar/handle/10915/72420 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/doi/10.1016/0370-2693(91)91347-X |
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