Search for a heavy Standard Model Higgs boson in the channel H -> ZZ -> l(+)l(-) q(q)over-bar using the ATLAS detector

A search for a heavy Standard Model Higgs boson decaying via H→ZZ→ℓ+ℓ-qq̄, where ℓ=e, μ, is presented. The search is performed using a data set of pp collisions at √s=7 TeV, corresponding to an integrated luminosity of 1.04 fb-1 collected in 2011 by the ATLAS detector at the CERN LHC collider. No si...

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Main Authors: Aad, G, Abbott, B, Abdallah, J, Abdelalim, A, Abdesselam, A, Abdinov, O, Abi, B, Abolins, M, Abramowicz, H, Abreu, H, Acerbi, E, Acharya, B, Adams, D, Addy, T, Adelman, J, Aderholz, M, Adomeit, S, Adragna, P, Adye, T, Aefsky, S, Aguilar-Saavedra, J, Aharrouche, M, Ahlen, S, Ahles, F, Ahmad, A
Format: Journal article
Language:English
Published: 2012
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author Aad, G
Abbott, B
Abdallah, J
Abdelalim, A
Abdesselam, A
Abdinov, O
Abi, B
Abolins, M
Abramowicz, H
Abreu, H
Acerbi, E
Acharya, B
Adams, D
Addy, T
Adelman, J
Aderholz, M
Adomeit, S
Adragna, P
Adye, T
Aefsky, S
Aguilar-Saavedra, J
Aharrouche, M
Ahlen, S
Ahles, F
Ahmad, A
author_facet Aad, G
Abbott, B
Abdallah, J
Abdelalim, A
Abdesselam, A
Abdinov, O
Abi, B
Abolins, M
Abramowicz, H
Abreu, H
Acerbi, E
Acharya, B
Adams, D
Addy, T
Adelman, J
Aderholz, M
Adomeit, S
Adragna, P
Adye, T
Aefsky, S
Aguilar-Saavedra, J
Aharrouche, M
Ahlen, S
Ahles, F
Ahmad, A
author_sort Aad, G
collection OXFORD
description A search for a heavy Standard Model Higgs boson decaying via H→ZZ→ℓ+ℓ-qq̄, where ℓ=e, μ, is presented. The search is performed using a data set of pp collisions at √s=7 TeV, corresponding to an integrated luminosity of 1.04 fb-1 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. © 2011 CERN.
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spelling oxford-uuid:2fa94122-2823-4125-aa68-f8aabb0a018d2022-03-26T12:56:41ZSearch for a heavy Standard Model Higgs boson in the channel H -> ZZ -> l(+)l(-) q(q)over-bar using the ATLAS detectorJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2fa94122-2823-4125-aa68-f8aabb0a018dEnglishSymplectic Elements at Oxford2012Aad, GAbbott, BAbdallah, JAbdelalim, AAbdesselam, AAbdinov, OAbi, BAbolins, MAbramowicz, HAbreu, HAcerbi, EAcharya, BAdams, DAddy, TAdelman, JAderholz, MAdomeit, SAdragna, PAdye, TAefsky, SAguilar-Saavedra, JAharrouche, MAhlen, SAhles, FAhmad, AA search for a heavy Standard Model Higgs boson decaying via H→ZZ→ℓ+ℓ-qq̄, where ℓ=e, μ, is presented. The search is performed using a data set of pp collisions at √s=7 TeV, corresponding to an integrated luminosity of 1.04 fb-1 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. © 2011 CERN.
spellingShingle Aad, G
Abbott, B
Abdallah, J
Abdelalim, A
Abdesselam, A
Abdinov, O
Abi, B
Abolins, M
Abramowicz, H
Abreu, H
Acerbi, E
Acharya, B
Adams, D
Addy, T
Adelman, J
Aderholz, M
Adomeit, S
Adragna, P
Adye, T
Aefsky, S
Aguilar-Saavedra, J
Aharrouche, M
Ahlen, S
Ahles, F
Ahmad, A
Search for a heavy Standard Model Higgs boson in the channel H -> ZZ -> l(+)l(-) q(q)over-bar using the ATLAS detector
title Search for a heavy Standard Model Higgs boson in the channel H -> ZZ -> l(+)l(-) q(q)over-bar using the ATLAS detector
title_full Search for a heavy Standard Model Higgs boson in the channel H -> ZZ -> l(+)l(-) q(q)over-bar using the ATLAS detector
title_fullStr Search for a heavy Standard Model Higgs boson in the channel H -> ZZ -> l(+)l(-) q(q)over-bar using the ATLAS detector
title_full_unstemmed Search for a heavy Standard Model Higgs boson in the channel H -> ZZ -> l(+)l(-) q(q)over-bar using the ATLAS detector
title_short Search for a heavy Standard Model Higgs boson in the channel H -> ZZ -> l(+)l(-) q(q)over-bar using the ATLAS detector
title_sort search for a heavy standard model higgs boson in the channel h gt zz gt l l q q over bar using the atlas detector
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