Measurement of the t(t)over-bar production cross section and the top quark mass in the dilepton channel in pp collisions at root s=7 Tev

doi:10.1007/JHEP07(2011)049

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	Measurement of the t(t)over-bar production cross section and the top quark mass in the dilepton channel in pp collisions at root s=7 Tev
	CMS Collaboration
	2011
发表期刊	JOURNAL OF HIGH ENERGY PHYSICS
期号	7
通讯作者	Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要	The t (t) over bar production cross section and top quark mass are measured in proton-proton collisions at root s = 7 TeV in a data sample corresponding to an integrated luminosity of 36 pb(-1) collected by the CMS experiment. The measurements are performed in events with two leptons (electrons or muons) in the final state. Results of the cross section measurement in events with and without b-quark identification are obtained and combined. The measured value is sigma(tt) - 168 +/- 18 (stat:) +/- 14 (syst:) +/- 7 (lumi:) pb, consistent with predictions from the standard model. The top quark mass m(top) is reconstructed with two different methods, a full kinematic analysis and a matrix weighting technique. The combination yields a measurement of m(top) = 175.5 +/- 4.6 (stat:) +/- 4: 6 (syst:) GeV/c(2).
关键词	COLLIDER DETECTOR EVENTS FERMILAB DECAY
学科领域	Physics
DOI	10.1007/JHEP07(2011)049
收录类别	SCI
语种	英语
WOS类目	Physics, Particles & Fields
WOS记录号	WOS:000293741400049
引用统计
文献类型	期刊论文
条目标识符	http://ir.ihep.ac.cn/handle/311005/213093
专题	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 t(t)over-bar production cross section and the top quark mass in the dilepton channel in pp collisions at root s=7 Tev[J]. JOURNAL OF HIGH ENERGY PHYSICS,2011(7).
APA	CMS Collaboration.(2011).Measurement of the t(t)over-bar production cross section and the top quark mass in the dilepton channel in pp collisions at root s=7 Tev.JOURNAL OF HIGH ENERGY PHYSICS(7).
MLA	CMS Collaboration."Measurement of the t(t)over-bar production cross section and the top quark mass in the dilepton channel in pp collisions at root s=7 Tev".JOURNAL OF HIGH ENERGY PHYSICS .7(2011).

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