A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider

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	A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider
	CMS Collaboration
刊名	SCIENCE
	2012
卷号	338 期号:6114 页码:1569-1575
关键词	MODEL HIGGS-BOSON PP COLLISIONS ROOT-S=7 TEV BROKEN SYMMETRIES WEAK INTERACTIONS GAUGE-THEORIES SEARCH PARTICLES LHC
通讯作者	Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan, Armenia.
英文摘要	The Higgs boson was postulated nearly five decades ago within the framework of the standard model of particle physics and has been the subject of numerous searches at accelerators around the world. Its discovery would verify the existence of a complex scalar field thought to give mass to three of the carriers of the electroweak force-the W+, W-, and Z(0) bosons-as well as to the fundamental quarks and leptons. The CMS Collaboration has observed, with a statistical significance of five standard deviations, a new particle produced in proton-proton collisions at the Large Hadron Collider at CERN. The evidence is strongest in the diphoton and four-lepton (electrons and/or muons) final states, which provide the best mass resolution in the CMS detector. The probability of the observed signal being due to a random fluctuation of the background is about 1 in 3 x 10(6). The new particle is a boson with spin not equal to 1 and has a mass of about 1.25 giga-electron volts. Although its measured properties are, within the uncertainties of the present data, consistent with those expected of the Higgs boson, more data are needed to elucidate the precise nature of the new particle.
学科主题	Science & Technology - Other Topics
类目[WOS]	Multidisciplinary Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000312533100042
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213406]
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. A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider[J]. SCIENCE,2012,338(6114):1569-1575.
APA	CMS Collaboration.(2012).A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider.SCIENCE,338(6114),1569-1575.
MLA	CMS Collaboration."A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider".SCIENCE 338.6114(2012):1569-1575.