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Search for the Standard Model Higgs boson in the decay channel H -> ZZ((*)) -> 4l with 4.8 fb(-1) of pp collision data at root s=7 TeV with ATLAS
ATLAS Collaboration
2012
发表期刊PHYSICS LETTERS B
卷号710期号:3页码:383-402
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
摘要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 mu, using proton-proton collisions at root 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. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
关键词HADRON COLLIDERS PARTON DISTRIBUTIONS QCD CORRECTIONS NNLO QCD LHC DETECTOR MASSES TAUOLA
学科领域Physics
DOI10.1016/j.physletb.2012.03.005
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000303081900002
引用统计
被引频次:82[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213218
专题实验物理中心
作者单位中国科学院高能物理研究所
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ATLAS Collaboration. Search for the Standard Model Higgs boson in the decay channel H -> ZZ((*)) -> 4l with 4.8 fb(-1) of pp collision data at root s=7 TeV with ATLAS[J]. PHYSICS LETTERS B,2012,710(3):383-402.
APA ATLAS Collaboration.(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 root s=7 TeV with ATLAS.PHYSICS LETTERS B,710(3),383-402.
MLA ATLAS Collaboration."Search for the Standard Model Higgs boson in the decay channel H -> ZZ((*)) -> 4l with 4.8 fb(-1) of pp collision data at root s=7 TeV with ATLAS".PHYSICS LETTERS B 710.3(2012):383-402.
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