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Abstract:

This Letter presents a search for the Standard Model Higgs boson in the decay channel H→ZZ (*) →ℓ + ℓ - ℓ '+ ℓ '- , where ℓ, ℓ ' =e or μ, using proton-proton collisions at √s=7 TeV recorded with the ATLAS detector and corresponding to an integrated luminosity of 4.8 fb -1 . The four-lepton invariant mass distribution is compared with Standard Model background expectations to derive upper limits on the cross section of a Standard Model Higgs boson with a mass between 110 GeV and 600 GeV. The mass ranges 134-156 GeV, 182-233 GeV, 256-265 GeV and 268-415 GeV are excluded at the 95% confidence level. The largest upward deviations from the background-only hypothesis are observed for Higgs boson masses of 125 GeV, 244 GeV and 500 GeV with local significances of 2.1, 2.2 and 2.1 standard deviations, respectively. Once the look-elsewhere effect is considered, none of these excesses are significant. © 2012 CERN.

Registro:

Documento: Artículo
Título:Search for the Standard Model Higgs boson in the decay channel H→ZZ (*) →4ℓ with 4.8 fb -1 of pp collision data at √s=7 TeV with ATLAS
Autor:Aad, G. et al.
Este artículo contiene 3066 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 3066 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:ATLAS; Higgs; Leptons; LHC
Año:2012
Volumen:710
Número:3
Página de inicio:383
Página de fin:402
DOI: http://dx.doi.org/10.1016/j.physletb.2012.03.005
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v710_n3_p383_Aad

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Citas:

---------- APA ----------
(2012) . Search for the Standard Model Higgs boson in the decay channel H→ZZ (*) →4ℓ with 4.8 fb -1 of pp collision data at √s=7 TeV with ATLAS. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 710(3), 383-402.
http://dx.doi.org/10.1016/j.physletb.2012.03.005
---------- CHICAGO ----------
Aad, G. "Search for the Standard Model Higgs boson in the decay channel H→ZZ (*) →4ℓ with 4.8 fb -1 of pp collision data at √s=7 TeV with ATLAS" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 710, no. 3 (2012) : 383-402.
http://dx.doi.org/10.1016/j.physletb.2012.03.005
---------- MLA ----------
Aad, G. "Search for the Standard Model Higgs boson in the decay channel H→ZZ (*) →4ℓ with 4.8 fb -1 of pp collision data at √s=7 TeV with ATLAS" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 710, no. 3, 2012, pp. 383-402.
http://dx.doi.org/10.1016/j.physletb.2012.03.005
---------- VANCOUVER ----------
Aad, G. Search for the Standard Model Higgs boson in the decay channel H→ZZ (*) →4ℓ with 4.8 fb -1 of pp collision data at √s=7 TeV with ATLAS. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2012;710(3):383-402.
http://dx.doi.org/10.1016/j.physletb.2012.03.005