Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states
CMS Collaboration
刊名JOURNAL OF HIGH ENERGY PHYSICS
2014
期号1
关键词STANDARD MODEL HADRON COLLIDERS ROOT-S=7 TEV ELECTROWEAK CORRECTIONS PARTON DISTRIBUTIONS MASSLESS PARTICLES BROKEN SYMMETRIES QCD CORRECTIONS ATLAS DETECTOR PP COLLISIONS
学科分类Physics
DOI10.1007/JHEP01(2014)096
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要A search for the standard model Higgs boson decaying to a W-boson pair at the LHC is reported. The event sample corresponds to an integrated luminosity of 4.9 fb(-1) and 19.4 fb(-1) collected with the CMS detector in pp collisions at = 7 and 8 TeV, respectively. The Higgs boson candidates are selected in events with two or three charged leptons. An excess of events above background is observed, consistent with the expectation from the standard model Higgs boson with a mass of around 125 GeV. The probability to observe an excess equal or larger than the one seen, under the background-only hypothesis, corresponds to a significance of 4.3 standard deviations for m (H) = 125.6 GeV. The observed signal cross section times the branching fraction to WW for m (H) = 125.6 GeV is times the standard model expectation. The spin-parity J (P) = 0(+) hypothesis is favored against a narrow resonance with J (P) = 2(+) or J (P) = 0(-) that decays to a W-boson pair. This result provides strong evidence for a Higgs-like boson decaying to a W-boson pair.
类目[WOS]Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000330792800001
引用统计
被引频次:55[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/311005/213655
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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CMS Collaboration. Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(1).
APA CMS Collaboration.(2014).Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states.JOURNAL OF HIGH ENERGY PHYSICS(1).
MLA CMS Collaboration."Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states".JOURNAL OF HIGH ENERGY PHYSICS .1(2014).
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