论文标题
一项在LHC上对顶级夸克对生产和腐烂的额外喷气活动的研究
A study of additional jet activity in top quark pair production and decay at the LHC
论文作者
论文摘要
我们报告了NLO QCD校正的计算，以与LHC处的两个硬射流相关的Quark对生产。我们考虑了Top-Quark对的生产和衰减中的高阶效应。后者以狭窄的宽度近似处理，并且在整个计算过程中保留了$ t \ bar {t} $旋转相关性。这是第一次在QCD的NLO进行此过程的完整研究。我们在综合和差异水平上提出了基准横截面的结果。此外，我们研究了其他灯喷头的运动属性及其在$ pp \ to t \ bar {t} JJ $进程中的分布。我们检查了生产和Quark衰减的喷气机，以及混合的贡献，在生产和衰减过程中同时出现了两个最难的非$ B $喷气机。
We report on the calculation of the NLO QCD corrections to top quark pair production in association with two hard jets at the LHC. We take into account higher-order effects in both the production and decays of the top-quark pair. The latter are treated in the narrow width approximation and $t\bar{t}$ spin correlations are preserved throughout the calculation. This is the first time that such a complete study for this process is conducted at NLO in QCD. We present results for fiducial cross sections at the integrated and differential level. Furthermore, we investigate kinematic properties of the additional light jets and their distribution in the $pp\to t\bar{t}jj$ process. We examine jets in production and top-quark decays as well as the mixed contribution, where the two hardest non-$b$ jets are present simultaneously in the production and decay processes.
