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Measurement of the inclusive t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV and determination of the top quark pole mass

机译:在根S = 1.96 TEV的P(P)过条碰撞中的包含T(T)过律浆液中的包含T(t)过律循环的测量和顶部夸克杆质量的确定

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The inclusive cross section of top quark-antiquark pairs produced in p (p) over bar collisions at root s = 1.96 TeV is measured in the lepton + jets and dilepton decay channels. The data sample corresponds to 9.7 fb(-1) of integrated luminosity recorded with the D0 detector during Run II of the Fermilab Tevatron Collider. Employing multivariate analysis techniques we measure the cross section in the two decay channels and we perform a combined cross section measurement. For a top quark mass of 172.5 GeV, we measure a combined inclusive top quark-antiquark pair production cross section of sigma(t<(t)over bar) = 7.26 +/- 0.13(stat)(-0.50)(+0.57) (syst) pb which is consistent with standard model predictions. We also perform a likelihood fit to the measured and predicted top quark mass dependence of the inclusive cross section, which yields a measurement of the pole mass of the top quark. The extracted value is m(t) = 172.8 +/- 1.1(theo)(-3.1)(+3.3) (exp) GeV.
机译:在Lepton +喷气机和Dilepton衰变通道中测量P(P)上的P(P)上的P(P)上的P(P)上的顶部Quark-antiquark对的包容横截面。 数据样本对应于在Fermilab Tevatron撞机的运行II期间用D0检测器记录的集成光度的9.7fb(-1)。 采用多变量分析技术我们测量两个衰减通道中的横截面,我们执行组合的横截面测量。 对于172.5 GEV的顶部夸克质量,我们测量SIGMA的组合包容性顶级夸克 - 抗型锥形生产横截面(T <(T)上方的T <(T))= 7.26 +/- 0.13(统计)( - 0.50)(+ 0.57) (SYST)PB与标准模型预测一致。 我们还执行拟合与可包裹横截面的测量和预测的顶部夸克质量依赖性的可能性,这产生了顶部夸克的极块的测量。 提取的值为M(t)= 172.8 +/- 1.1(TheO)( - 3.1)(+ 3.3)(exp)GEV。

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