论文标题
NLO QCD校正在半左右的最终状态下为极化的Di-Boson产生
NLO QCD corrections to polarised di-boson production in semi-leptonic final states
论文作者
论文摘要
鉴于即将到来的Run-3和高亮度数据，了解LHC的多玻色子过程的极化结构并提供了精确的预测。 CMS和ATLAS协作已经开始使用偏振预测来执行数据的模板拟合，从而访问W和Z玻色子的极化。到目前为止，从这个角度来看，仅考虑了完全左右的衰减渠道。自然的一步是对电动玻色子的耐电腐烂的调查。在这项工作中，我们将NLO QCD校正计算为最终状态下LHC的WZ Pairs的生产和衰减，并用两个带电的瘦素和喷气机。该计算取决于在标准模型幅度水平上的双杆近似和极化状态的分离。提出的NLO准确结果是对半乳清衰减通道中偏振二波孔产生的广泛理解和精确建模的必要基础。
Understanding the polarisation structure and providing precise predictions for multi-boson processes at the LHC is becoming urgent in the light of the upcoming run-3 and high-luminosity data. The CMS and ATLAS collaborations have already started using polarised predictions to perform template fits of the data, getting access to the polarisation of W and Z bosons. So far, only fully-leptonic decay channels have been considered in this perspective. The natural step forward is the investigation of hadronic decays of electroweak bosons. In this work, we compute NLO QCD corrections to the production and decay of WZ pairs at the LHC in final states with two charged leptons and jets. The calculation relies on the double-pole approximation and the separation of polarised states at the level of Standard Model amplitudes. The presented NLO-accurate results are necessary building blocks for a broad understanding and precise modelling of polarised di-boson production in semi-leptonic decay channels.
