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Combined results of searches for the standard model Higgs boson in pp collisions at root s=7 TeV
CMS Collaboration
2012
发表期刊PHYSICS LETTERS B
卷号710期号:1页码:26-48
通讯作者Sphicas, P (reprint author), CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
摘要Combined results are reported from searches for the standard model Higgs boson in proton-proton collisions at root s = 7 TeV in five Higgs boson decay modes: gamma gamma, bb, tau tau, WW, and ZZ. The explored Higgs boson mass range is 110-600 GeV. The analysed data correspond to an integrated luminosity of 4.6-4.8 fb(-1). The expected excluded mass range in the absence of the standard model Higgs boson is 118-543 GeV at 95% CL. The observed results exclude the standard model Higgs boson in the mass range 127-600 GeV at 95% CL, and in the mass range 129-525 GeV at 99% CL. An excess of events above the expected standard model background is observed at the low end of the explored mass range making the observed limits weaker than expected in the absence of a signal. The largest excess, with a local significance of 3.1 sigma, is observed for a Higgs boson mass hypothesis of 124 GeV. The global significance of observing an excess with a local significance >= 3.1 sigma anywhere in the search range 110-600 (110-145) GeV is estimated to be 1.5 sigma (2.1 sigma). More data are required to ascertain the origin of the observed excess. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
关键词HADRON COLLIDERS QCD CORRECTIONS ELECTROWEAK CORRECTIONS MASSLESS PARTICLES BROKEN SYMMETRIES NNLO QCD LHC DECAYS
学科领域Physics
DOI10.1016/j.physletb.2012.02.064
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000302672500005
引用统计
被引频次:458[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/311005/213209
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Combined results of searches for the standard model Higgs boson in pp collisions at root s=7 TeV[J]. PHYSICS LETTERS B,2012,710(1):26-48.
APA CMS Collaboration.(2012).Combined results of searches for the standard model Higgs boson in pp collisions at root s=7 TeV.PHYSICS LETTERS B,710(1),26-48.
MLA CMS Collaboration."Combined results of searches for the standard model Higgs boson in pp collisions at root s=7 TeV".PHYSICS LETTERS B 710.1(2012):26-48.
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