Search for new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at √s = 8 TeV with the ATLAS detector at the LHC
- Autores
- Alconada Verzini, María Josefina; Alonso, Francisco; Arduh, Francisco Anuar; Dova, María Teresa; Monticelli, Fernando Gabriel; Wahlberg, Hernán Pablo; The ATLAS Collaboration
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- This paper presents a search for Higgs bosons decaying to four leptons, either electrons or muons, via one or two light exotic gauge bosons Zd, H→ZZd→4ℓ or H→ZdZd→4ℓ. The search was performed using pp collision data corresponding to an integrated luminosity of about 20 fb-1 at the center-of-mass energy of √s = 8 TeV recorded with the ATLAS detector at the Large Hadron Collider. The observed data are well described by the Standard Model prediction. Upper bounds on the branching ratio of H→ZZd→4ℓ and on the kinetic mixing parameter between the Zd and the Standard Model hypercharge gauge boson are set in the range (1-9)×10-5 and (4-17)×10-2 respectively, at 95% confidence level assuming the Standard Model branching ratio of H→ZZ*→4ℓ, for Zd masses between 15 and 55 GeV. Upper bounds on the effective mass mixing parameter between the Z and the Zd are also set using the branching ratio limits in the H→ZZd→4ℓ search, and are in the range (1.5-8.7)×10-4 for 15
Zd<35 GeV. Upper bounds on the branching ratio of H→ZdZd→4ℓ and on the Higgs portal coupling parameter, controlling the strength of the coupling of the Higgs boson to dark vector bosons are set in the range (2-3)×10-5 and (1-10)×10-4 respectively, at 95% confidence level assuming the Standard Model Higgs boson production cross sections, for Zd masses between 15 and 60 GeV.
La lista completa de autores que integran el documento puede consultarse en el archivo.
Facultad de Ciencias Exactas
Instituto de Física La Plata - Materia
-
Ciencias Exactas
Física
proton-proton collisions
ATLAS detector - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/3.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/86910
Ver los metadatos del registro completo
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Search for new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at √s = 8 TeV with the ATLAS detector at the LHCAlconada Verzini, María JosefinaAlonso, FranciscoArduh, Francisco AnuarDova, María TeresaMonticelli, Fernando GabrielWahlberg, Hernán PabloThe ATLAS CollaborationCiencias ExactasFísicaproton-proton collisionsATLAS detectorThis paper presents a search for Higgs bosons decaying to four leptons, either electrons or muons, via one or two light exotic gauge bosons Z<sub>d</sub>, H→ZZ<sub>d</sub>→4ℓ or H→Z<sub>d</sub>Z<sub>d</sub>→4ℓ. The search was performed using pp collision data corresponding to an integrated luminosity of about 20 fb<sup>-1</sup> at the center-of-mass energy of √s = 8 TeV recorded with the ATLAS detector at the Large Hadron Collider. The observed data are well described by the Standard Model prediction. Upper bounds on the branching ratio of H→ZZ<sub>d</sub>→4ℓ and on the kinetic mixing parameter between the Z<sub>d</sub> and the Standard Model hypercharge gauge boson are set in the range (1-9)×10<sup>-5</sup> and (4-17)×10-2 respectively, at 95% confidence level assuming the Standard Model branching ratio of H→ZZ*→4ℓ, for Z<sub>d</sub> masses between 15 and 55 GeV. Upper bounds on the effective mass mixing parameter between the Z and the Z<sub>d</sub> are also set using the branching ratio limits in the H→ZZ<sub>d</sub>→4ℓ search, and are in the range (1.5-8.7)×10<sup>-4</sup> for 15<m<SUB>Z<sub>d</sub></SUB><35 GeV. Upper bounds on the branching ratio of H→Z<sub>d</sub>Z<sub>d</sub>→4ℓ and on the Higgs portal coupling parameter, controlling the strength of the coupling of the Higgs boson to dark vector bosons are set in the range (2-3)×10<sup>-5</sup> and (1-10)×10<sup>-4</sup> respectively, at 95% confidence level assuming the Standard Model Higgs boson production cross sections, for Z<sub>d</sub> masses between 15 and 60 GeV.La lista completa de autores que integran el documento puede consultarse en el archivo.Facultad de Ciencias ExactasInstituto de Física La Plata2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/86910enginfo:eu-repo/semantics/altIdentifier/issn/1550-7998info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.92.092001info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/Creative Commons Attribution 3.0 Unported (CC BY 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:54Zoai:sedici.unlp.edu.ar:10915/86910Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:54.462SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Search for new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at √s = 8 TeV with the ATLAS detector at the LHC |
title |
Search for new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at √s = 8 TeV with the ATLAS detector at the LHC |
spellingShingle |
Search for new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at √s = 8 TeV with the ATLAS detector at the LHC Alconada Verzini, María Josefina Ciencias Exactas Física proton-proton collisions ATLAS detector |
title_short |
Search for new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at √s = 8 TeV with the ATLAS detector at the LHC |
title_full |
Search for new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at √s = 8 TeV with the ATLAS detector at the LHC |
title_fullStr |
Search for new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at √s = 8 TeV with the ATLAS detector at the LHC |
title_full_unstemmed |
Search for new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at √s = 8 TeV with the ATLAS detector at the LHC |
title_sort |
Search for new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at √s = 8 TeV with the ATLAS detector at the LHC |
dc.creator.none.fl_str_mv |
Alconada Verzini, María Josefina Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
author |
Alconada Verzini, María Josefina |
author_facet |
Alconada Verzini, María Josefina Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
author_role |
author |
author2 |
Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Ciencias Exactas Física proton-proton collisions ATLAS detector |
topic |
Ciencias Exactas Física proton-proton collisions ATLAS detector |
dc.description.none.fl_txt_mv |
This paper presents a search for Higgs bosons decaying to four leptons, either electrons or muons, via one or two light exotic gauge bosons Z<sub>d</sub>, H→ZZ<sub>d</sub>→4ℓ or H→Z<sub>d</sub>Z<sub>d</sub>→4ℓ. The search was performed using pp collision data corresponding to an integrated luminosity of about 20 fb<sup>-1</sup> at the center-of-mass energy of √s = 8 TeV recorded with the ATLAS detector at the Large Hadron Collider. The observed data are well described by the Standard Model prediction. Upper bounds on the branching ratio of H→ZZ<sub>d</sub>→4ℓ and on the kinetic mixing parameter between the Z<sub>d</sub> and the Standard Model hypercharge gauge boson are set in the range (1-9)×10<sup>-5</sup> and (4-17)×10-2 respectively, at 95% confidence level assuming the Standard Model branching ratio of H→ZZ*→4ℓ, for Z<sub>d</sub> masses between 15 and 55 GeV. Upper bounds on the effective mass mixing parameter between the Z and the Z<sub>d</sub> are also set using the branching ratio limits in the H→ZZ<sub>d</sub>→4ℓ search, and are in the range (1.5-8.7)×10<sup>-4</sup> for 15<m<SUB>Z<sub>d</sub></SUB><35 GeV. Upper bounds on the branching ratio of H→Z<sub>d</sub>Z<sub>d</sub>→4ℓ and on the Higgs portal coupling parameter, controlling the strength of the coupling of the Higgs boson to dark vector bosons are set in the range (2-3)×10<sup>-5</sup> and (1-10)×10<sup>-4</sup> respectively, at 95% confidence level assuming the Standard Model Higgs boson production cross sections, for Z<sub>d</sub> masses between 15 and 60 GeV. La lista completa de autores que integran el documento puede consultarse en el archivo. Facultad de Ciencias Exactas Instituto de Física La Plata |
description |
This paper presents a search for Higgs bosons decaying to four leptons, either electrons or muons, via one or two light exotic gauge bosons Z<sub>d</sub>, H→ZZ<sub>d</sub>→4ℓ or H→Z<sub>d</sub>Z<sub>d</sub>→4ℓ. The search was performed using pp collision data corresponding to an integrated luminosity of about 20 fb<sup>-1</sup> at the center-of-mass energy of √s = 8 TeV recorded with the ATLAS detector at the Large Hadron Collider. The observed data are well described by the Standard Model prediction. Upper bounds on the branching ratio of H→ZZ<sub>d</sub>→4ℓ and on the kinetic mixing parameter between the Z<sub>d</sub> and the Standard Model hypercharge gauge boson are set in the range (1-9)×10<sup>-5</sup> and (4-17)×10-2 respectively, at 95% confidence level assuming the Standard Model branching ratio of H→ZZ*→4ℓ, for Z<sub>d</sub> masses between 15 and 55 GeV. Upper bounds on the effective mass mixing parameter between the Z and the Z<sub>d</sub> are also set using the branching ratio limits in the H→ZZ<sub>d</sub>→4ℓ search, and are in the range (1.5-8.7)×10<sup>-4</sup> for 15<m<SUB>Z<sub>d</sub></SUB><35 GeV. Upper bounds on the branching ratio of H→Z<sub>d</sub>Z<sub>d</sub>→4ℓ and on the Higgs portal coupling parameter, controlling the strength of the coupling of the Higgs boson to dark vector bosons are set in the range (2-3)×10<sup>-5</sup> and (1-10)×10<sup>-4</sup> respectively, at 95% confidence level assuming the Standard Model Higgs boson production cross sections, for Z<sub>d</sub> masses between 15 and 60 GeV. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 |
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 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/1550-7998 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.92.092001 |
dc.rights.none.fl_str_mv |
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eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported (CC BY 3.0) |
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