Measurement of the t(t)over-bar production cross section in the all-jet final state in pp collisions at root s=7 TeV
CMS Collaboration
刊名JOURNAL OF HIGH ENERGY PHYSICS
2013
期号5
关键词LEPTON ATLAS
学科分类Physics
DOI10.1007/JHEP05(2013)065
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要A measurement is presented of the t (t) over bar production cross section (sigma(t (t) over bar)) in proton-proton collisions at a centre-of-mass energy of 7 TeV, in the all-jet final state that contains at least six jets, two of which are tagged as originating from b quarks. The data correspond to an integrated luminosity of 3.54 fb(-1), collected with the CMS detector at the LHC. The cross section is determined through an unbinned maximum likelihood fit of background and t (t) over bar signal to the reconstructed mass spectrum of t (t) over bar candidates in the data, in which events are subjected to a kinematic fit assuming a t (t) over bar -> W(+)bW(-)(b) over bar -> 6 jets hypothesis. The measurement yields sigma(t (t) over bar) = 139 +/- 10 (stat.) +/- 26 (syst.) +/- 3 (lum.) pb, a result consistent with those obtained in other t (t) over bar decay channels, as well as with predictions of the standard model.
类目[WOS]Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000321374400065
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213560
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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CMS Collaboration. Measurement of the t(t)over-bar production cross section in the all-jet final state in pp collisions at root s=7 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2013(5).
APA CMS Collaboration.(2013).Measurement of the t(t)over-bar production cross section in the all-jet final state in pp collisions at root s=7 TeV.JOURNAL OF HIGH ENERGY PHYSICS(5).
MLA CMS Collaboration."Measurement of the t(t)over-bar production cross section in the all-jet final state in pp collisions at root s=7 TeV".JOURNAL OF HIGH ENERGY PHYSICS .5(2013).
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