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Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector
ATLAS collaboration
2014
发表期刊PHYSICS LETTERS B
卷号728页码:363-379
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
摘要A measurement of the mass difference between top and anti-top quarks is presented. In a 4.7 fb(-1) data sample of proton-proton collisions at root s = 7 TeV recorded with the ATLAS detector at the LHC, events consistent with t (t) over bar production and decay into a single charged lepton final state are reconstructed. For each event, the mass difference between the top and anti-top quark candidate is calculated. A two b-tag requirement is used in order to reduce the background contribution. A maximum likelihood fit to these per-event mass differences yields Delta m = m(t) - m((t) over bar) = 0.67 +/- 0.61 (stat) +/- 0.41 (syst) GeV, consistent with CPT invariance. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.
关键词PARTON DISTRIBUTIONS LHC
学科领域Physics
DOI10.1016/j.physletb.2013.12.010
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000330556000059
引用统计
被引频次:6[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/311005/213652
专题实验物理中心
作者单位中国科学院高能物理研究所
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ATLAS collaboration. Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector[J]. PHYSICS LETTERS B,2014,728:363-379.
APA ATLAS collaboration.(2014).Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector.PHYSICS LETTERS B,728,363-379.
MLA ATLAS collaboration."Measurement of the mass difference between top and anti-top quarks in pp collisions at root s=7 TeV using the ATLAS detector".PHYSICS LETTERS B 728(2014):363-379.
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