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	Measurement of the jet mass in highly boosted t(t)over-bar events from pp collisions at root s=8tev
	Sirunyan, A. M.1; Tumasyan, A.1; Adam, W.2; Asilar, E.2; Bergauer, T.2; Brandstetter, J.2; Brondolin, E.2; Dragicevic, M.2; Eroe, J.2; Flechl, M.2
刊名	European physical journal c
	2017-07-14
卷号	77期号:7页码:28
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-017-5030-3
通讯作者	Sirunyan, a. m.()
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.
WOS关键词	NNLL THRESHOLD RESUMMATION ; TOP-PAIR ; HADRON COLLIDERS ; CROSS-SECTION ; LHC
WOS研究方向	Physics
WOS类目	Physics, Particles & Fields
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000405437500001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177252
专题	高能物理研究所
通讯作者	Sirunyan, A. M.
作者单位	1.Yerevan Phys Inst, Yerevan, Armenia 2.Inst Hochenergiephys, Vienna, Austria 3.Inst Nucl Problems, Minsk, Byelarus 4.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus 5.Univ Antwerp, Antwerp, Belgium 6.Vrije Univ Brussel, Brussels, Belgium 7.Univ Libre Bruxelles, Brussels, Belgium 8.Univ Ghent, Ghent, Belgium 9.Catholic Univ Louvain, Louvain La Neu, Belgium 10.Univ Mons, Mons, Belgium
推荐引用方式 GB/T 7714	Sirunyan, A. M.,Tumasyan, A.,Adam, W.,et al. 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):28.
APA	Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,Bergauer, T..,...&Khan, W. A..(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),28.
MLA	Sirunyan, A. M.,et al."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):28.

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