Search for Heavy Neutral Leptons in Events with Three Charged Leptons in Proton-Proton Collisions at root s=13 TeV

doi:10.1103/PhysRevLett.120.221801

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	Search for Heavy Neutral Leptons in Events with Three Charged Leptons in Proton-Proton Collisions at root s=13 TeV
	CMS Collaboration
刊名	PHYSICAL REVIEW LETTERS
	2018
卷号	120 期号:22 页码:221801
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.120.221801
文献子类	Article
英文摘要	A search for a heavy neutral lepton N of Majorana nature decaying into a W boson and a charged lepton is performed using the CMS detector at the LHC. The targeted signature consists of three prompt charged leptons in any flavor combination of electrons and muons. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV, with an integrated luminosity of 35.9 fb(-1). The search is performed in the N mass range between 1 GeV and 1.2 TeV. The data are found to be consistent with the expected standard model background. Upper limits are set on the values of vertical bar V-eN vertical bar(2) and vertical bar V-mu N vertical bar(2), where V-lN is the matrix element describing the mixing of N with the standard model neutrino of flavor l. These are the first direct limits for N masses above 500 GeV and the first limits obtained at a hadron collider for N masses below 40 GeV.
电子版国际标准刊号	1079-7114
WOS关键词	E(+)E(-) ANNIHILATION ; DARK-MATTER ; MASSES ; NEUTRINOS ; DECAYS ; BEAM ; OSCILLATIONS ; BARYOGENESIS ; VIOLATION ; TEVATRON
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000433292700003
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285965]
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. Search for Heavy Neutral Leptons in Events with Three Charged Leptons in Proton-Proton Collisions at root s=13 TeV[J]. PHYSICAL REVIEW LETTERS,2018,120(22):221801.
APA	CMS Collaboration.(2018).Search for Heavy Neutral Leptons in Events with Three Charged Leptons in Proton-Proton Collisions at root s=13 TeV.PHYSICAL REVIEW LETTERS,120(22),221801.
MLA	CMS Collaboration."Search for Heavy Neutral Leptons in Events with Three Charged Leptons in Proton-Proton Collisions at root s=13 TeV".PHYSICAL REVIEW LETTERS 120.22(2018):221801.