Search for a heavy Standard Model Higgs boson in the channel <i>H → Z Z → ℓ+ℓ−q ̄q</i> using the ATLAS detector

A search for a heavy Standard Model Higgs boson decaying via <i>H → Z Z → ℓ+ℓ−q ̄q</i>, where <i>ℓ = e,μ</i>, is presented. The search is performed using a data set of <i>pp</i> collisions at √s = 7 TeV, corresponding to an integrated luminosity of 1.04 fb<sup&...

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Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79562
Aporte de:
id I19-R120-10915-79562
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
standard model Higgs boson
ATLAS
spellingShingle Física
standard model Higgs boson
ATLAS
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Search for a heavy Standard Model Higgs boson in the channel <i>H → Z Z → ℓ+ℓ−q ̄q</i> using the ATLAS detector
topic_facet Física
standard model Higgs boson
ATLAS
description A search for a heavy Standard Model Higgs boson decaying via <i>H → Z Z → ℓ+ℓ−q ̄q</i>, where <i>ℓ = e,μ</i>, is presented. The search is performed using a data set of <i>pp</i> collisions at √s = 7 TeV, corresponding to an integrated luminosity of 1.04 fb<sup>−1</sup> collected in 2011 by the ATLAS detector at the CERN LHC collider. No significant excess of events above the estimated background is found. Upper limits at 95% confidence level on the production cross section (relative to that expected from the Standard Model) of a Higgs boson with a mass in the range between 200 and 600 GeV are derived. Within this mass range, there is at present insufficient sensitivity to exclude a Standard Model Higgs boson. For a Higgs boson with a mass of 360 GeV, where the sensitivity is maximal, the observed and expected cross section upper limits are factors of 1.7 and 2.7, respectively, larger than the Standard Model prediction.
format Articulo
Articulo
author Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_sort Anduaga, Xabier Sebastián
title Search for a heavy Standard Model Higgs boson in the channel <i>H → Z Z → ℓ+ℓ−q ̄q</i> using the ATLAS detector
title_short Search for a heavy Standard Model Higgs boson in the channel <i>H → Z Z → ℓ+ℓ−q ̄q</i> using the ATLAS detector
title_full Search for a heavy Standard Model Higgs boson in the channel <i>H → Z Z → ℓ+ℓ−q ̄q</i> using the ATLAS detector
title_fullStr Search for a heavy Standard Model Higgs boson in the channel <i>H → Z Z → ℓ+ℓ−q ̄q</i> using the ATLAS detector
title_full_unstemmed Search for a heavy Standard Model Higgs boson in the channel <i>H → Z Z → ℓ+ℓ−q ̄q</i> using the ATLAS detector
title_sort search for a heavy standard model higgs boson in the channel <i>h → z z → ℓ+ℓ−q ̄q</i> using the atlas detector
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/79562
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