论文标题
精确QCD校正LHC的Gluon发射的Diphoton-Plus-jet生产
Precision QCD corrections to gluon-initiated diphoton-plus-jet production at the LHC
论文作者
论文摘要
在本文中，我们在高阶量子染色体动力学（QCD）计算的精确边界上介绍了最新进展。我们考虑了无质量的两环五点振幅，特别关注通过Gluon Fusion产生双旋源 - 加油。我们在QCD中构建了一个红外功能的库（NNLO），该库可用于验证NNLO的减法方案中的振幅和构造反处理。我们回顾了机器学习技术新颖使用方面的进度，以优化强子对撞机模拟中振幅的评估。我们通过Gluon Fusion介绍了全彩虚拟QCD校正，以产生双旋源 - 加射流，讨论了开发的用于计算这些非平面两环振幅的新技术。我们使用这些振幅来计算通过大型强子对撞机的Gluon Fusion的二光子plus-jet生产的差异QCD校正。我们还提出了用于Hadronic Trijet生产的领先双重校正。所有派生的幅度都可以在公共实施中提供，该实施已准备好进行现象学应用。
In this thesis, we present recent advances at the precision frontier of higher-order quantum chromodynamics (QCD) calculations. We consider massless two-loop five-point amplitudes, with a particular focus on diphoton-plus-jet production through gluon fusion. We build a library of infrared functions up to at most next-to-next-to-leading order (NNLO) in QCD, which can be used to validate amplitudes and construct counterterms in subtraction schemes at NNLO. We review progress in the novel use of machine learning technology to optimise the evaluation of amplitudes in hadron collider simulations. We present the full-colour virtual QCD corrections to diphoton-plus-jet production through gluon fusion, discussing the new techniques developed to calculate these non-planar two-loop amplitudes. We use these amplitudes to compute the next-to-leading QCD corrections to the differential cross sections of diphoton-plus-jet production through gluon fusion at the Large Hadron Collider. We also present the leading-colour double-virtual corrections to hadronic trijet production. All derived amplitudes are made available in a public implementation that is ready for further phenomenological application.
