Measurements of t(t)over-bar charge asymmetry using dilepton final states in pp collisions at root s=8 TeV
CMS Collaboration
刊名PHYSICS LETTERS B
2016
卷号760页码:365
关键词CMS Physics Top Charge asymmetry
DOI10.1016/j.physletb.2016.07.006
文章类型Article
英文摘要The charge asymmetry in ttevents is measured using dilepton final states produced in ppcollisions at the LHC at root s = 8 TeV. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 19.5 fb(-1). The measurements are performed using events with two oppositely charged leptons (electrons or muons) and two or more jets, where at least one of the jets is identified as originating from a bottom quark. The charge asymmetry is measured from differences in kinematic distributions, unfolded to the parton level, of positively and negatively charged top quarks and leptons. The t (t) over bar and leptonic inclusive charge asymmetries are found to be 0.011 +/- 0.011 (stat) +/- 0.007 (syst) and 0.003 +/- 0.006 (stat) +/- 0.003 (syst), respectively. These results, as well as charge asymmetry measurements made as a function of the invariant mass, rapidity, and transverse momentum of the t (t) over bar system, are in agreement with predictions of the standard model. (C) 2016 The Author(s). Published by Elsevier B.V.
关键词[WOS]QUARK PAIR PRODUCTION ; DIFFERENTIAL MEASUREMENTS ; DECAY ; TEVATRON ; LHC
语种英语
WOS记录号WOS:000382890500060
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被引频次:4[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/311005/260741
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. Measurements of t(t)over-bar charge asymmetry using dilepton final states in pp collisions at root s=8 TeV[J]. PHYSICS LETTERS B,2016,760:365.
APA CMS Collaboration.(2016).Measurements of t(t)over-bar charge asymmetry using dilepton final states in pp collisions at root s=8 TeV.PHYSICS LETTERS B,760,365.
MLA CMS Collaboration."Measurements of t(t)over-bar charge asymmetry using dilepton final states in pp collisions at root s=8 TeV".PHYSICS LETTERS B 760(2016):365.
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