论文标题

$ t \ bar {t} b \ bar {b} $在LHC上的完整脱壳NLO QCD预测

Full off-shell NLO QCD predictions for $t\bar{t}b\bar{b}$ at the LHC

论文作者

Kraus, Manfred

论文摘要

我们在NLO QCD准确性的Di-Lepton Decay频道中对$ pp \ t \ bar {t} b \ bar {b} $的最新理论预测进行报告。我们简要讨论NLO QCD校正对差分分布的影响,并从量表和PDF依赖性中提出理论不确定性。此外,我们提出了一个简单的运动学重建,以区分$ b $ jet,该$ b $ swes源自源自gluon分裂的顶级腐烂。

We report on state-of-the-art theoretical predictions for $pp\to t\bar{t}b\bar{b}$ including full off-shell effects in the di-lepton decay channel at NLO QCD accuracy. We briefly discuss the impact of NLO QCD corrections on differential distributions and also asses theoretical uncertainties from scale and PDF dependence. Furthermore, we propose a simple kinematic reconstruction in order to distinguish $b$ jets originating from top-quark decays from arising from gluon splittings.

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