Measurement of triple-gauge-boson couplings of the W boson at LEP

Autores
Dova, María Teresa; L3 Collaboration
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The CP-conserving triple-gauge-boson couplings, gZ1 , κγ , λγ , gZ5 , κZ and λZ are measured using hadronic and semi-leptonic W-pair events selected in 629 pb−1 of data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 209 GeV. The results are combined with previous L3 measurements based on data collected at lower centre-of-mass energies and with the results from single-W production and from events with a single-photon and missing energy. Imposing the constraints κZ = gZ1− tan2 θW(κγ − 1) and λZ =λγ , we obtain for the C and P conserving couplings the results: gZ1= 0.966 ± 0.033(stat) ± 0.015(syst), κγ =1.013 ± 0.066(stat) ± 0.026(syst), λγ =−0.021 ± 0.035(stat) ± 0.017(syst). Results from the analysis of fully leptonic W-pair decays are also given. All results are in agreement with the Standard Model expectations and confirm the existence of self-couplings among electroweak gauge bosons.
Facultad de Ciencias Exactas
Materia
Física
W boson
L3 detector
Electroweak theory
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:10915/78382
Acceder
id SEDICI_86480afcbf15f1fa649930d69cc602f0
oai_identifier_str oai:sedici.unlp.edu.ar:10915/78382
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Measurement of triple-gauge-boson couplings of the W boson at LEPDova, María TeresaL3 CollaborationFísicaW bosonL3 detectorElectroweak theoryThe CP-conserving triple-gauge-boson couplings, gZ1 , κγ , λγ , gZ5 , κZ and λZ are measured using hadronic and semi-leptonic W-pair events selected in 629 pb−1 of data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 209 GeV. The results are combined with previous L3 measurements based on data collected at lower centre-of-mass energies and with the results from single-W production and from events with a single-photon and missing energy. Imposing the constraints κZ = gZ1− tan2 θW(κγ − 1) and λZ =λγ , we obtain for the C and P conserving couplings the results: gZ1= 0.966 ± 0.033(stat) ± 0.015(syst), κγ =1.013 ± 0.066(stat) ± 0.026(syst), λγ =−0.021 ± 0.035(stat) ± 0.017(syst). Results from the analysis of fully leptonic W-pair decays are also given. All results are in agreement with the Standard Model expectations and confirm the existence of self-couplings among electroweak gauge bosons.Facultad de Ciencias Exactas2004-04-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf151-166http://sedici.unlp.edu.ar/handle/10915/78382enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2004.02.045info: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:UNLP2025-10-15T11:03:55Zoai:sedici.unlp.edu.ar:10915/78382Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:03:55.848SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Measurement of triple-gauge-boson couplings of the W boson at LEP
title Measurement of triple-gauge-boson couplings of the W boson at LEP
spellingShingle Measurement of triple-gauge-boson couplings of the W boson at LEP
Dova, María Teresa
Física
W boson
L3 detector
Electroweak theory
title_short Measurement of triple-gauge-boson couplings of the W boson at LEP
title_full Measurement of triple-gauge-boson couplings of the W boson at LEP
title_fullStr Measurement of triple-gauge-boson couplings of the W boson at LEP
title_full_unstemmed Measurement of triple-gauge-boson couplings of the W boson at LEP
title_sort Measurement of triple-gauge-boson couplings of the W boson 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 Física
W boson
L3 detector
Electroweak theory
topic Física
W boson
L3 detector
Electroweak theory
dc.description.none.fl_txt_mv The CP-conserving triple-gauge-boson couplings, gZ1 , κγ , λγ , gZ5 , κZ and λZ are measured using hadronic and semi-leptonic W-pair events selected in 629 pb−1 of data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 209 GeV. The results are combined with previous L3 measurements based on data collected at lower centre-of-mass energies and with the results from single-W production and from events with a single-photon and missing energy. Imposing the constraints κZ = gZ1− tan2 θW(κγ − 1) and λZ =λγ , we obtain for the C and P conserving couplings the results: gZ1= 0.966 ± 0.033(stat) ± 0.015(syst), κγ =1.013 ± 0.066(stat) ± 0.026(syst), λγ =−0.021 ± 0.035(stat) ± 0.017(syst). Results from the analysis of fully leptonic W-pair decays are also given. All results are in agreement with the Standard Model expectations and confirm the existence of self-couplings among electroweak gauge bosons.
Facultad de Ciencias Exactas
description The CP-conserving triple-gauge-boson couplings, gZ1 , κγ , λγ , gZ5 , κZ and λZ are measured using hadronic and semi-leptonic W-pair events selected in 629 pb−1 of data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 209 GeV. The results are combined with previous L3 measurements based on data collected at lower centre-of-mass energies and with the results from single-W production and from events with a single-photon and missing energy. Imposing the constraints κZ = gZ1− tan2 θW(κγ − 1) and λZ =λγ , we obtain for the C and P conserving couplings the results: gZ1= 0.966 ± 0.033(stat) ± 0.015(syst), κγ =1.013 ± 0.066(stat) ± 0.026(syst), λγ =−0.021 ± 0.035(stat) ± 0.017(syst). Results from the analysis of fully leptonic W-pair decays are also given. All results are in agreement with the Standard Model expectations and confirm the existence of self-couplings among electroweak gauge bosons.
publishDate 2004
dc.date.none.fl_str_mv 2004-04-29
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/10915/78382
url http://sedici.unlp.edu.ar/handle/10915/78382
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/j.physletb.2004.02.045
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
151-166
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
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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score 13.22299

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