论文标题
LHC的Electroweak $ t \ b t $生产的精确预测，其中具有风味的非diagonal $ z'$ boson耦合和$ w'$ bosons
Precise predictions for electroweak $t\bar t$ production at the LHC in models with flavour non-diagonal $Z'$ boson couplings and $W'$ bosons
论文作者
论文摘要
我们报告了我们在标准模型扩展中对Electroweak Top-Quark对生产的重新计算，其中LHC在LHC处具有额外的重中性和带电的Spin-1颗粒，并进行了实质性改进。特别是，我们允许使用Flavour-diagonal $ z'$耦合，并考虑到标准模型及以后的非共振生产。与以前的工作一样，我们包括NLO QCD校正，并通过Powheg方法充分考虑了标准模型和新的物理干扰效果。我们考虑了连续的标准模型，TopColour模型以及第三个家庭超收费模型，其中包含非Flavour对角$ Z'$耦合，该模型已提议在$ B $衰减中解释异常。介绍了$ t \ bar {t} $ cross部分的数值结果，呈现$ \ sqrt {s} $的数值结果，最多可达100 tev。我们还研究了新的非共鸣贡献的数值影响。
We report on our re-calculation of electroweak top-quark pair production in Standard Model extensions with extra heavy neutral and charged spin-1 particles at the LHC with substantial improvements. In particular, we allow for flavour--non-diagonal $Z'$ couplings and take into account non-resonant production in the Standard Model and beyond. As in our previous work we include NLO QCD corrections and match to parton showers with the POWHEG method fully taking into account the Standard Model and new physics interference effects. We consider the Sequential Standard Model, the Topcolour model as well as the Third Family Hypercharge Model featuring non-flavour diagonal $Z'$ couplings which has been proposed to explain the anomalies in $B$ decays. Numerical results for $t\bar{t}$ cross sections at hadron colliders with $\sqrt{s}$ of up to 100 TeV are presented. We also investigate the numerical impact of the new non-resonant contributions.
