Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC

Autores
Anduaga, Xabier Sebastián; Dova, María Teresa; Monticelli, Fernando Gabriel; Tripiana, Martín F.; The ATLAS Collaboration
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb-1 to 4.9 fb-1 of pp collisions collected at √s = 7 TeV is presented. The Higgs boson mass ranges 112.9–115.5 GeV, 131–238 GeV and 251– 466 GeV are excluded at the 95% confidence level (CL), while the range 124–519 GeV is expected to be excluded in the absence of a signal. An excess of events is observed around mH ∼ 126 GeV with a local significance of 3.5 standard deviations (σ). The local significances of H → γγ, H → ZZ() →ℓ+ℓ-ℓ'+ℓ'- and H → WW() → ℓ+νℓ'-ν¯, the three most sensitive channels in this mass range, are 2.8σ ,2.1σ and 1.4σ , respectively. The global probability for the background to produce such a fluctuation anywhere in the explored Higgs boson mass range 110–600 GeV is estimated to be ∼ 1.4% or, equivalently, 2.2σ.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
standard model Higgs boson
electroweak symmetry breaking
la̵rge hadron collider
ATLAS detector
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/80255

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network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHCAnduaga, Xabier SebastiánDova, María TeresaMonticelli, Fernando GabrielTripiana, Martín F.The ATLAS CollaborationCiencias ExactasFísicastandard model Higgs bosonelectroweak symmetry breakingla̵rge hadron colliderATLAS detectorA combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb<sup>-1</sup> to 4.9 fb<sup>-1</sup> of pp collisions collected at √s = 7 TeV is presented. The Higgs boson mass ranges 112.9–115.5 GeV, 131–238 GeV and 251– 466 GeV are excluded at the 95% confidence level (CL), while the range 124–519 GeV is expected to be excluded in the absence of a signal. An excess of events is observed around m<sub>H</sub> ∼ 126 GeV with a local significance of 3.5 standard deviations (σ). The local significances of H → γγ, H → ZZ(<sup>∗</sup>) →ℓ+ℓ-ℓ'+ℓ'- and H → WW(<sup>∗</sup>) → ℓ+νℓ'-ν¯, the three most sensitive channels in this mass range, are 2.8σ ,2.1σ and 1.4σ , respectively. The global probability for the background to produce such a fluctuation anywhere in the explored Higgs boson mass range 110–600 GeV is estimated to be ∼ 1.4% or, equivalently, 2.2σ.Facultad de Ciencias Exactas2012-02-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfp. 49-66http://sedici.unlp.edu.ar/handle/10915/80255enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2012.02.044info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:14:46Zoai:sedici.unlp.edu.ar:10915/80255Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:14:46.97SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC
title Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC
spellingShingle Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC
Anduaga, Xabier Sebastián
Ciencias Exactas
Física
standard model Higgs boson
electroweak symmetry breaking
la̵rge hadron collider
ATLAS detector
title_short Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC
title_full Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC
title_fullStr Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC
title_full_unstemmed Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC
title_sort Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC
dc.creator.none.fl_str_mv Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author Anduaga, Xabier Sebastián
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_role author
author2 Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
standard model Higgs boson
electroweak symmetry breaking
la̵rge hadron collider
ATLAS detector
topic Ciencias Exactas
Física
standard model Higgs boson
electroweak symmetry breaking
la̵rge hadron collider
ATLAS detector
dc.description.none.fl_txt_mv A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb<sup>-1</sup> to 4.9 fb<sup>-1</sup> of pp collisions collected at √s = 7 TeV is presented. The Higgs boson mass ranges 112.9–115.5 GeV, 131–238 GeV and 251– 466 GeV are excluded at the 95% confidence level (CL), while the range 124–519 GeV is expected to be excluded in the absence of a signal. An excess of events is observed around m<sub>H</sub> ∼ 126 GeV with a local significance of 3.5 standard deviations (σ). The local significances of H → γγ, H → ZZ(<sup>∗</sup>) →ℓ+ℓ-ℓ'+ℓ'- and H → WW(<sup>∗</sup>) → ℓ+νℓ'-ν¯, the three most sensitive channels in this mass range, are 2.8σ ,2.1σ and 1.4σ , respectively. The global probability for the background to produce such a fluctuation anywhere in the explored Higgs boson mass range 110–600 GeV is estimated to be ∼ 1.4% or, equivalently, 2.2σ.
Facultad de Ciencias Exactas
description A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb<sup>-1</sup> to 4.9 fb<sup>-1</sup> of pp collisions collected at √s = 7 TeV is presented. The Higgs boson mass ranges 112.9–115.5 GeV, 131–238 GeV and 251– 466 GeV are excluded at the 95% confidence level (CL), while the range 124–519 GeV is expected to be excluded in the absence of a signal. An excess of events is observed around m<sub>H</sub> ∼ 126 GeV with a local significance of 3.5 standard deviations (σ). The local significances of H → γγ, H → ZZ(<sup>∗</sup>) →ℓ+ℓ-ℓ'+ℓ'- and H → WW(<sup>∗</sup>) → ℓ+νℓ'-ν¯, the three most sensitive channels in this mass range, are 2.8σ ,2.1σ and 1.4σ , respectively. The global probability for the background to produce such a fluctuation anywhere in the explored Higgs boson mass range 110–600 GeV is estimated to be ∼ 1.4% or, equivalently, 2.2σ.
publishDate 2012
dc.date.none.fl_str_mv 2012-02-21
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/10915/80255
url http://sedici.unlp.edu.ar/handle/10915/80255
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.2012.02.044
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
p. 49-66
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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