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Measurements of t(t)over-bar Spin Correlations and Top-Quark Polarization Using Dilepton Final States in pp Collisions at root s=7 TeV
CMS Collaboration
2014
发表期刊PHYSICAL REVIEW LETTERS
卷号112期号:18
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要Spin correlations and polarization in the top quark-antiquark system are measured using dilepton final states produced in pp collisions at the LHC at root s = 7 TeV. The data correspond to an integrated luminosity of 5.0 fb(-1) collected with the CMS detector. The measurements are performed using events with two oppositely charged leptons (electrons or muons), a significant imbalance in transverse momentum, and two or more jets, where at least one of the jets is identified as originating from a b quark. The spin correlations and polarization are measured through asymmetries in angular distributions of the two selected leptons, unfolded to the parton level. All measurements are found to be in agreement with predictions of the standard model.
关键词PAIR PRODUCTION
学科领域Physics
DOI10.1103/PhysRevLett.112.182001
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000336099800004
引用统计
被引频次:41[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/311005/213710
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. Measurements of t(t)over-bar Spin Correlations and Top-Quark Polarization Using Dilepton Final States in pp Collisions at root s=7 TeV[J]. PHYSICAL REVIEW LETTERS,2014,112(18).
APA CMS Collaboration.(2014).Measurements of t(t)over-bar Spin Correlations and Top-Quark Polarization Using Dilepton Final States in pp Collisions at root s=7 TeV.PHYSICAL REVIEW LETTERS,112(18).
MLA CMS Collaboration."Measurements of t(t)over-bar Spin Correlations and Top-Quark Polarization Using Dilepton Final States in pp Collisions at root s=7 TeV".PHYSICAL REVIEW LETTERS 112.18(2014).
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