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Measurement of the top-quark mass in t(t)over-bar events with dilepton final states in pp collisions at root s=7 TeV
CMS Collaboration
2012
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号72期号:10
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要The top-quark mass is measured in proton-proton collisions at root s = 7 TeV using a data sample corresponding to an integrated luminosity of 5.0 fb(-1) collected by the CMS experiment at the LHC. The measurement is performed in the dilepton decay channel t (t) over bar -> (l(+)nu(l)b) (l-(nu) over bar (l)(b) over bar), where l = e, mu. Candidate top-quark decays are selected by requiring two leptons, at least two jets, and imbalance in transverse momentum. The mass is reconstructed with an analytical matrix weighting technique using distributions derived from simulated samples. Using a maximum-likelihood fit, the top-quark mass is determined to be 172.5 +/- 0.4 (stat.) +/- 1.5 (syst.) GeV.
学科领域Physics
DOI10.1140/epjc/s10052-012-2202-z
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000310609100001
引用统计
被引频次:7[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/311005/213374
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
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CMS Collaboration. Measurement of the top-quark mass in t(t)over-bar events with dilepton final states in pp collisions at root s=7 TeV[J]. EUROPEAN PHYSICAL JOURNAL C,2012,72(10).
APA CMS Collaboration.(2012).Measurement of the top-quark mass in t(t)over-bar events with dilepton final states in pp collisions at root s=7 TeV.EUROPEAN PHYSICAL JOURNAL C,72(10).
MLA CMS Collaboration."Measurement of the top-quark mass in t(t)over-bar events with dilepton final states in pp collisions at root s=7 TeV".EUROPEAN PHYSICAL JOURNAL C 72.10(2012).
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