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Search for the standard model Higgs boson decaying into two photons in pp collisions at root s=7 TeV
CMS Collaboration
2012
发表期刊PHYSICS LETTERS B
卷号710期号:3页码:403-425
通讯作者Sphicas, P (reprint author), CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
摘要A search for a Higgs boson decaying into two photons is described. The analysis is performed using a dataset recorded by the CMS experiment at the LHC from pp collisions at a center-of-mass energy of 7 TeV, which corresponds to an integrated luminosity of 4.8 fb(-1). Limits are set on the cross section of the standard model Higgs boson decaying to two photons. The expected exclusion limit at 95% confidence level is between 1.4 and 2.4 times the standard model cross section in the mass range between 110 and 150 GeV. The analysis of the data excludes, at 95% confidence level, the standard model Higgs boson decaying into two photons in the mass range 128 to 132 GeV. The largest excess of events above the expected standard model background is observed for a Higgs boson mass hypothesis of 124 GeV with a local significance of 3.1 sigma. The global significance of observing an excess with a local significance >= 3.1 sigma anywhere in the search range 110-150 GeV is estimated to be 1.8 sigma. More data are required to ascertain the origin of this excess. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
关键词MASSLESS PARTICLES BROKEN SYMMETRIES HADRON COLLIDERS CROSS-SECTION LHC QCD SPECTRUM
学科领域Physics
DOI10.1016/j.physletb.2012.03.003
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000303081900003
引用统计
被引频次:158[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/311005/213219
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. Search for the standard model Higgs boson decaying into two photons in pp collisions at root s=7 TeV[J]. PHYSICS LETTERS B,2012,710(3):403-425.
APA CMS Collaboration.(2012).Search for the standard model Higgs boson decaying into two photons in pp collisions at root s=7 TeV.PHYSICS LETTERS B,710(3),403-425.
MLA CMS Collaboration."Search for the standard model Higgs boson decaying into two photons in pp collisions at root s=7 TeV".PHYSICS LETTERS B 710.3(2012):403-425.
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