Study of the Mass and Spin-Parity of the Higgs Boson Candidate via Its Decays to Z Boson Pairs

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	Study of the Mass and Spin-Parity of the Higgs Boson Candidate via Its Decays to Z Boson Pairs
	CMS Collaboration
刊名	PHYSICAL REVIEW LETTERS
	2013
卷号	110 期号:8
关键词	BROKEN SYMMETRIES MODEL LHC PARTICLES LEPTONS SEARCH
通讯作者	Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要	A study is presented of the mass and spin-parity of the new boson recently observed at the LHC at a mass near 125 GeV. An integrated luminosity of 17: 3 fb(-1), collected by the CMS experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV, is used. The measured mass in the ZZ channel, where both Z bosons decay to e or mu pairs, is 126: 2 +/- 0.6(stat) +/- 0. 2(syst) GeV. The angular distributions of the lepton pairs in this channel are sensitive to the spin-parity of the boson. Under the assumption of spin 0, the present data are consistent with the pure scalar hypothesis, while disfavoring the pure pseudoscalar hypothesis. DOI: 10.1103/PhysRevLett.110.081803
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000315284800001
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213465]
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. Study of the Mass and Spin-Parity of the Higgs Boson Candidate via Its Decays to Z Boson Pairs[J]. PHYSICAL REVIEW LETTERS,2013,110(8).
APA	CMS Collaboration.(2013).Study of the Mass and Spin-Parity of the Higgs Boson Candidate via Its Decays to Z Boson Pairs.PHYSICAL REVIEW LETTERS,110(8).
MLA	CMS Collaboration."Study of the Mass and Spin-Parity of the Higgs Boson Candidate via Its Decays to Z Boson Pairs".PHYSICAL REVIEW LETTERS 110.8(2013).