Measurement of the inclusive $$ \mathrm{t}\overline{\mathrm{t}} $$ production cross section in proton-proton collisions at $$ \sqrt{s} $$ = 5.02 TeV

Measurement of the inclusive $$ \mathrm{t}\overline{\mathrm{t}} $$ production cross section in proton-proton collisions at $$ \sqrt{s} $$ = 5.02 TeV
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在 $$ sqrt{s} $$ = 5.02 TeV 处质子-质子碰撞中包含 $$ mathrm{t}overline{mathrm{t}} $$ 生产截面的测量

DOI:
10.1007/jhep04(2022)144
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发表时间:
2022
影响因子:
5.4
通讯作者:
Krammer, N.
Krammer, N.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Tumasyan, A.;Adam, W.;Andrejkovic, J. W.;Bergauer, T.;Chatterjee, S.;Dragicevic, M.;Escalante Del Valle, A.;Frühwirth, R.;Jeitler, M.;Krammer, N.

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顶夸克对产生截面是在质心能量为 5.02 TeV 的质子-质子碰撞中测量的。这些数据是在 2017 年一次特殊的 LHC 低能量和低强度运行中收集的,对应于 302 pb−1 的积分光度。测量是使用具有一个电子和一个相反电荷的 μ 子以及至少两个喷射的事件进行的。实测横截面为60。7±5。 0(统计)±2。 8(系统)±1。 1(亮度)pb。然后根据 2015 年在相同质心能量处收集的数据并对应于 27.4 pb−1 的积分光度,将结果与单个轻子+射流通道中的结果进行组合。所得测量值为63. 0±4。 1(统计)±3。 0(syst+lumi)pb,与pb的标准模型预测一致。
The top quark pair production cross section is measured in proton-proton collisions at a center-of-mass energy of 5.02 TeV. The data were collected in a special LHC low-energy and low-intensity run in 2017, and correspond to an integrated luminosity of 302 pb− 1. The measurement is performed using events with one electron and one muon of opposite charge, and at least two jets. The measured cross section is 60. 7±5. 0 (stat)±2. 8 (syst)±1. 1 (lumi) pb. A combination with the result in the single lepton+ jets channel, based on data collected in 2015 at the same center-of-mass energy and corresponding to an integrated luminosity of 27.4 pb− 1, is then performed. The resulting measured value is 63. 0±4. 1 (stat)±3. 0 (syst+ lumi) pb, in agreement with the standard model prediction ofpb.
DOI: 10.22323/1.247.0170
发表时间: 2015-06
期刊: arXiv: High Energy Physics - Phenomenology
影响因子: --
作者:
N. Kidonakis
通讯作者: N. Kidonakis