Combined results of searches for the standard model Higgs boson in pp collisions at root s=7 TeV

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	Combined results of searches for the standard model Higgs boson in pp collisions at root s=7 TeV
	CMS Collaboration
刊名	PHYSICS LETTERS B
	2012
卷号	710 期号:1 页码:26-48
关键词	HADRON COLLIDERS QCD CORRECTIONS ELECTROWEAK CORRECTIONS MASSLESS PARTICLES BROKEN SYMMETRIES NNLO QCD LHC DECAYS
通讯作者	Sphicas, P (reprint author), CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000302672500005
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213209]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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.