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首页> 外文期刊>Physics Letters, B. Nuclear Physics and High Energy Physics >Measurement of the t(t)over-bar production cross section in pp collisions at root s=8 TeV in dilepton final states containing one tau lepton
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Measurement of the t(t)over-bar production cross section in pp collisions at root s=8 TeV in dilepton final states containing one tau lepton

机译:在包含一个tau轻子的dilepton最终状态下,在根s = 8 TeV的pp碰撞中pp碰撞中的t(t)跨栏生产横截面的测量

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摘要

The top-quark pair production cross section is measured in final states with one electron or muon and one hadronically decaying tau lepton from the process t (t) over bar -> (l nu(l))(tau nu(tau))b (b) over bar, where l = e, mu. The data sample corresponds to an integrated luminosity of 19.6 fb(-1) collected with the CMS detector in proton-proton collisions at root s = 8 TeV. The measured cross section sigma(t (t) over bar) = 257 +/- 3 (stat) +/- 24 (syst) +/- 7 (lumi) pb, assuming a top-quark mass of 172.5 GeV, is consistent with the standard model prediction. (C) 2014 The Authors. Published by Elsevier B.V.
机译:顶夸克对的生产截面是在最终状态下测量的,其中一个电子或μ子和一个强子衰变的tau轻子来自过程t(t)在bar->(l nu(l))(tau nu(tau)b (b)超过bar,其中l = e,mu。数据样本对应于在根s = 8 TeV的质子-质子碰撞中由CMS检测器收集的19.6 fb(-1)的综合光度。假设顶夸克质量为172.5 GeV,则测得的横截面sigma(t(t)超过bar)= 257 +/- 3(stat)+/- 24(syst)+/- 7(lumi)pb使用标准模型预测。 (C)2014作者。由Elsevier B.V.发布

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