论文标题
nnlo QCD的强子山着壁生产的Triphoton生产
Triphoton production at hadron colliders in NNLO QCD
论文作者
论文摘要
我们在完全差异水平的HADRONIC碰撞中介绍了近代到接头阶（NNLO）QCD校正。我们在矩阵中采用QT减法，并有效地实现了领先近似中的分析两环振幅，以在NNLO的精度下实现此过程的第一个即时计算。在7 TEV到100 TEV的能量下，给出了质子 - 蛋白质碰撞的数值结果。我们发现与ARXIV的8个TEV结果完全一致：1911.00479，并确认NNLO校正是必不可少的，以描述Atlas 8 TEV数据。此外，我们证明了NNLO校正对于在较高碰撞能量下对Triphoton生产的未来精确研究的重要性。
We present next-to-next-to-leading-order (NNLO) QCD corrections to the production of three isolated photons in hadronic collisions at the fully differential level. We employ qT subtraction within MATRIX and an efficient implementation of analytic two-loop amplitudes in the leading-colour approximation to achieve the first on-the-fly calculation for this process at NNLO accuracy. Numerical results are presented for proton-proton collisions at energies ranging from 7 TeV to 100 TeV. We find full agreement with the 8 TeV results of arXiv:1911.00479 and confirm that NNLO corrections are indispensable to describe ATLAS 8 TeV data. In addition, we demonstrate the significance of NNLO corrections for future precision studies of triphoton production at higher collision energies.
