Measurement of the jet mass in highly boosted t(t)over-bar events from pp collisions at root s=8TeV

doi:10.1140/epjc/s10052-017-5030-3

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	Measurement of the jet mass in highly boosted t(t)over-bar events from pp collisions at root s=8TeV
	CMS Collaboration
刊名	EUROPEAN PHYSICAL JOURNAL C
	2017
卷号	77 期号:7 页码:467
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-017-5030-3
文献子类	Article
英文摘要	The first measurement of the jet mass m(jet) of top quark jets produced in t (t) over bar events from pp collisions at root s = 8 TeV is reported for the jet with the largest transverse momentum p(T) in highly boosted hadronic top quark decays. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 19.7 fb(-1). The measurement is performed in the lepton+jets channel in which the products of the semileptonic decay t -> bW with W -> l nu where l is an electron or muon, are used to select t (t) over bar events with large Lorentz boosts. The products of the fully hadronic decay t -> bW with W -> q (q) over bar ' are reconstructed using a single Cambridge-Aachen jet with distance parameter R = 1.2, and pT > 400 GeV. The t (t) over bar cross section as a function of m(jet) is unfolded at the particle level and is used to test the modelling of highly boosted top quark production. The peak position of the m(jet) distribution is sensitive to the top quark mass m(t), and the data are used to extract a value of m(t) to assess this sensitivity.
电子版国际标准刊号	1434-6052
WOS关键词	NNLL THRESHOLD RESUMMATION ; TOP-PAIR ; HADRON COLLIDERS ; CROSS-SECTION ; LHC
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000405437500001
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284506]
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. Measurement of the jet mass in highly boosted t(t)over-bar events from pp collisions at root s=8TeV[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(7):467.
APA	CMS Collaboration.(2017).Measurement of the jet mass in highly boosted t(t)over-bar events from pp collisions at root s=8TeV.EUROPEAN PHYSICAL JOURNAL C,77(7),467.
MLA	CMS Collaboration."Measurement of the jet mass in highly boosted t(t)over-bar events from pp collisions at root s=8TeV".EUROPEAN PHYSICAL JOURNAL C 77.7(2017):467.