Search for pair production of vector-like quarks in the bW(b)over-barW channel from proton-proton collisions at root s=13TeV

doi:10.1016/j.physletb.2018.01.077

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	Search for pair production of vector-like quarks in the bW(b)over-barW channel from proton-proton collisions at root s=13TeV
	CMS Collaboration
刊名	PHYSICS LETTERS B
	2018
卷号	779 页码:82-106
关键词	CMS Physics Vector-like quarks
ISSN号	0370-2693
DOI	10.1016/j.physletb.2018.01.077
文献子类	Article
英文摘要	A search is presented for the production of vector-like quark pairs, T (T) over bar or Y (Y) over bar, with electric charge of 2/3(T) or -4/3(Y), in proton-proton collisions at root s= 13 TeV. The data were collected by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.8 fb(-1). The T and Y quarks are assumed to decay exclusively to a W boson and a b quark. The search is based on events with a single isolated electron or muon, large missing transverse momentum, and at least four jets with large transverse momenta. In the search, a kinematic reconstruction of the final state observables is performed, which would permit a signal to be detected as a narrow mass peak (approximate to 7% resolution). The observed number of events is consistent with the standard model prediction. Assuming strong pair production of the vector-like quarks and a 100% branching fraction to bW, a lower limit of 1295 GeV at 95% confidence level is set on the T and Y quark masses. (c) 2018 The Author(s). Published by Elsevier B.V.
电子版国际标准刊号	1873-2445
WOS关键词	HIGGS THEORIES
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
WOS记录号	WOS:000429098900011
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285843]
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 pair production of vector-like quarks in the bW(b)over-barW channel from proton-proton collisions at root s=13TeV[J]. PHYSICS LETTERS B,2018,779:82-106.
APA	CMS Collaboration.(2018).Search for pair production of vector-like quarks in the bW(b)over-barW channel from proton-proton collisions at root s=13TeV.PHYSICS LETTERS B,779,82-106.
MLA	CMS Collaboration."Search for pair production of vector-like quarks in the bW(b)over-barW channel from proton-proton collisions at root s=13TeV".PHYSICS LETTERS B 779(2018):82-106.