Measurement of the tau branching fractions into leptons
- Autores
- Dova, María Teresa; L3 Collaboration
- Año de publicación
- 2001
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Using data collected with the L3 detector near the Z resonance, corresponding to an integrated luminosity of 150 pb−1, the branching fractions of the tau lepton into electron and muon are measured to be B(τ → eν ̄eντ ) = (17.806 ± 0.104 (stat.) ± 0.076 (syst.))%, B(τ → μν ̄μντ ) = (17.342±0.110 (stat.)±0.067 (syst.))%. From these results the ratio of the charged current coupling constants of the muon and the electron is determined to be gμ/ge = 1.0007 ± 0.0051. Assuming electron-muon universality, the Fermi constant is measured in tau lepton decays as GF = (1.1616± 0.0058) × 10−5 GeV−2. Furthermore, the coupling constant of the strong interaction at the tau mass scale is obtained as αs(m2 τ ) = 0.322 ± 0.009 (exp.) ± 0.015 (theory).
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
L3 detector
tau lepton
electron and muon - 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:10915/75889
Ver los metadatos del registro completo
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Measurement of the tau branching fractions into leptonsDova, María TeresaL3 CollaborationCiencias ExactasFísicaL3 detectortau leptonelectron and muonUsing data collected with the L3 detector near the Z resonance, corresponding to an integrated luminosity of 150 pb−1, the branching fractions of the tau lepton into electron and muon are measured to be B(τ → eν ̄eντ ) = (17.806 ± 0.104 (stat.) ± 0.076 (syst.))%, B(τ → μν ̄μντ ) = (17.342±0.110 (stat.)±0.067 (syst.))%. From these results the ratio of the charged current coupling constants of the muon and the electron is determined to be gμ/ge = 1.0007 ± 0.0051. Assuming electron-muon universality, the Fermi constant is measured in tau lepton decays as GF = (1.1616± 0.0058) × 10−5 GeV−2. Furthermore, the coupling constant of the strong interaction at the tau mass scale is obtained as αs(m2 τ ) = 0.322 ± 0.009 (exp.) ± 0.015 (theory).Facultad de Ciencias Exactas2001-05-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf47-60http://sedici.unlp.edu.ar/handle/10915/75889enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(01)00294-5info: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:UNLP2025-09-03T10:44:13Zoai:sedici.unlp.edu.ar:10915/75889Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:44:13.686SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Measurement of the tau branching fractions into leptons |
| title |
Measurement of the tau branching fractions into leptons |
| spellingShingle |
Measurement of the tau branching fractions into leptons Dova, María Teresa Ciencias Exactas Física L3 detector tau lepton electron and muon |
| title_short |
Measurement of the tau branching fractions into leptons |
| title_full |
Measurement of the tau branching fractions into leptons |
| title_fullStr |
Measurement of the tau branching fractions into leptons |
| title_full_unstemmed |
Measurement of the tau branching fractions into leptons |
| title_sort |
Measurement of the tau branching fractions into 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 L3 detector tau lepton electron and muon |
| topic |
Ciencias Exactas Física L3 detector tau lepton electron and muon |
| dc.description.none.fl_txt_mv |
Using data collected with the L3 detector near the Z resonance, corresponding to an integrated luminosity of 150 pb−1, the branching fractions of the tau lepton into electron and muon are measured to be B(τ → eν ̄eντ ) = (17.806 ± 0.104 (stat.) ± 0.076 (syst.))%, B(τ → μν ̄μντ ) = (17.342±0.110 (stat.)±0.067 (syst.))%. From these results the ratio of the charged current coupling constants of the muon and the electron is determined to be gμ/ge = 1.0007 ± 0.0051. Assuming electron-muon universality, the Fermi constant is measured in tau lepton decays as GF = (1.1616± 0.0058) × 10−5 GeV−2. Furthermore, the coupling constant of the strong interaction at the tau mass scale is obtained as αs(m2 τ ) = 0.322 ± 0.009 (exp.) ± 0.015 (theory). Facultad de Ciencias Exactas |
| description |
Using data collected with the L3 detector near the Z resonance, corresponding to an integrated luminosity of 150 pb−1, the branching fractions of the tau lepton into electron and muon are measured to be B(τ → eν ̄eντ ) = (17.806 ± 0.104 (stat.) ± 0.076 (syst.))%, B(τ → μν ̄μντ ) = (17.342±0.110 (stat.)±0.067 (syst.))%. From these results the ratio of the charged current coupling constants of the muon and the electron is determined to be gμ/ge = 1.0007 ± 0.0051. Assuming electron-muon universality, the Fermi constant is measured in tau lepton decays as GF = (1.1616± 0.0058) × 10−5 GeV−2. Furthermore, the coupling constant of the strong interaction at the tau mass scale is obtained as αs(m2 τ ) = 0.322 ± 0.009 (exp.) ± 0.015 (theory). |
| publishDate |
2001 |
| dc.date.none.fl_str_mv |
2001-05-17 |
| 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 |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/75889 |
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http://sedici.unlp.edu.ar/handle/10915/75889 |
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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/S0370-2693(01)00294-5 |
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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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